Fair Value Measurements and Derivative Instruments (Carrying Amounts and Fair Value of the Financial Instruments) (Details) - USD ($) $ in Thousands |
Mar. 31, 2017 |
Dec. 31, 2016 |
|---|---|---|
| Senior Notes [Member] | Senior Notes Due 2021 [Member] | ||
| Debt Instrument [Line Items] | ||
| Debt stated percentage | 6.75% | |
| Senior Notes [Member] | Senior Notes Due 2025 [Member] | ||
| Debt Instrument [Line Items] | ||
| Debt stated percentage | 6.875% | |
| Carrying Amount [Member] | ||
| Debt Instrument [Line Items] | ||
| Current and long-term debt | $ 1,367,106 | $ 1,336,772 |
| Fair Value [Member] | ||
| Debt Instrument [Line Items] | ||
| Current and long-term debt | $ 1,439,970 | $ 1,393,865 |
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- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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