CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $)
In Thousands, unless otherwise specified |
Total
|
Class A and B Shares Held in Treasury
|
Paid-in Capital
|
Retained Earnings
|
Non-controlling Interests
|
Class B Common Stock
|
Class A Common Stock
|
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Beginning balances, total stockholders' equity at Dec. 31, 2011 | $ 173,647us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest |
$ (2,225)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember |
$ 32,795us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
$ 97,911us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |
$ 16,308us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
$ 2,679us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember |
$ 26,179us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | |||||||
Net income (loss) | 9,162us-gaap_ProfitLoss |
9,673us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |
(511)us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
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Common stock repurchases and retirements | (17,611)us-gaap_StockRepurchasedAndRetiredDuringPeriodValue |
90us-gaap_StockRepurchasedAndRetiredDuringPeriodValue / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember |
(17,701)us-gaap_StockRepurchasedAndRetiredDuringPeriodValue / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
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Shares issued under stock option plan | 2,118us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised |
2,118us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
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Issuance of restricted stock awards |
(12,104)us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
12,104us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
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Share-based compensation expense | 5,072us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue |
5,072us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
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Issuance of treasury shares related to deferred compensation payment | 580us-gaap_StockIssuedDuringPeriodValueTreasuryStockReissued |
511us-gaap_StockIssuedDuringPeriodValueTreasuryStockReissued / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember |
69us-gaap_StockIssuedDuringPeriodValueTreasuryStockReissued / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
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Investment by non-controlling interest | 16,461gncma_NoncontrollingInterestIncreasefromInvestment |
16,461gncma_NoncontrollingInterestIncreasefromInvestment / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
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Other | 7us-gaap_StockholdersEquityOther |
7us-gaap_StockholdersEquityOther / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember |
(3)us-gaap_StockholdersEquityOther / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember |
3us-gaap_StockholdersEquityOther / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
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Ending balances, total stockholders' equity at Dec. 31, 2012 | 189,436us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest |
(1,617)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember |
25,832us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
107,584us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |
32,258us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
2,676us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember |
22,703us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | |||||||
Net income (loss) | 31,727us-gaap_ProfitLoss |
9,406us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |
22,321us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
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Common stock repurchases and retirements | (17,208)us-gaap_StockRepurchasedAndRetiredDuringPeriodValue |
130us-gaap_StockRepurchasedAndRetiredDuringPeriodValue / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember |
(17,338)us-gaap_StockRepurchasedAndRetiredDuringPeriodValue / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
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Shares issued under stock option plan | 622us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised |
622us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
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Issuance of restricted stock awards |
(5,477)us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
5,477us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
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Share-based compensation expense | 6,525us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue |
6,525us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
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Issuance of treasury shares related to deferred compensation payment | 621us-gaap_StockIssuedDuringPeriodValueTreasuryStockReissued |
621us-gaap_StockIssuedDuringPeriodValueTreasuryStockReissued / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember |
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Investment by non-controlling interest | 267,642gncma_NoncontrollingInterestIncreasefromInvestment |
267,642gncma_NoncontrollingInterestIncreasefromInvestment / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
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Distribution to non-controlling interests | (22,011)us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders |
(22,011)us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
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Other |
(3)us-gaap_StockholdersEquityOther / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember |
3us-gaap_StockholdersEquityOther / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
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Ending balances, total stockholders' equity at Dec. 31, 2013 | 457,354us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest |
(866)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember |
26,880us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
116,990us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |
300,210us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
2,673us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember |
11,467us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
Increase (Decrease) in Stockholders' Equity [Roll Forward] | |||||||
Net income (loss) | 59,244us-gaap_ProfitLoss |
7,557us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |
51,687us-gaap_ProfitLoss / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
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Common stock repurchases and retirements | (6,850)us-gaap_StockRepurchasedAndRetiredDuringPeriodValue |
(6,850)us-gaap_StockRepurchasedAndRetiredDuringPeriodValue / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
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Shares issued under stock option plan | 466us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised |
466us-gaap_StockIssuedDuringPeriodValueStockOptionsExercised / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
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Issuance of restricted stock awards |
(8,529)us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
8,529us-gaap_StockIssuedDuringPeriodValueRestrictedStockAwardNetOfForfeitures / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
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Share-based compensation expense | 8,324us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue |
8,324us-gaap_AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
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Issuance of treasury shares related to deferred compensation payment | 715us-gaap_StockIssuedDuringPeriodValueTreasuryStockReissued |
617us-gaap_StockIssuedDuringPeriodValueTreasuryStockReissued / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember |
98us-gaap_StockIssuedDuringPeriodValueTreasuryStockReissued / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
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Distribution to non-controlling interests | (50,000)us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders |
(50,000)us-gaap_MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
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Adjustment to investment by non-controlling interest | (2,131)gncma_NoncontrollingInterestDecreasefromAdjustmenttoInvestment |
(2,131)gncma_NoncontrollingInterestDecreasefromAdjustmenttoInvestment / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
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Other | 100us-gaap_StockholdersEquityOther |
100us-gaap_StockholdersEquityOther / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
(5)us-gaap_StockholdersEquityOther / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember |
5us-gaap_StockholdersEquityOther / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
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Ending balances, total stockholders' equity at Dec. 31, 2014 | $ 467,222us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest |
$ (249)us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_TreasuryStockMember |
$ 26,773us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_AdditionalPaidInCapitalMember |
$ 124,547us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_RetainedEarningsMember |
$ 299,866us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementEquityComponentsAxis = us-gaap_NoncontrollingInterestMember |
$ 2,668us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassBMember |
$ 13,617us-gaap_StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |
X | ||||||||||
- Definition
Noncontrolling Interest, Decrease from Adjustment to Investment No definition available.
|
X | ||||||||||
- Definition
Noncontrolling Interest, Increase from Investment No definition available.
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X | ||||||||||
- Definition
This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation". Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Details
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X | ||||||||||
- Definition
Decrease in noncontrolling interest balance from payment of dividends or other distributions by the non-wholly owned subsidiary or partially owned entity, included in the consolidation of the parent entity, to the noncontrolling interest holders. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
This element represents movements included in the statement of changes in stockholders' equity which are not separately disclosed or provided for elsewhere in the taxonomy. No definition available.
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X | ||||||||||
- Definition
Value of stock related to Restricted Stock Awards issued during the period, net of the stock value of such awards forfeited. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Value of stock issued as a result of the exercise of stock options. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Equity impact of the value of treasury stock (units) reissued during the period, excluding reissuance of shares (units) held in treasury used to satisfy equity-based compensation obligations exercised by the holders of such rights. Upon reissuance of shares (units) from treasury, either the common or preferred stock (unit) reissued is outstanding. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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X | ||||||||||
- Definition
Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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