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Long Term Debt (Schedule of Redemption Prices) (Details) (Line of Credit [Member])
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12 Months Ended |
|---|---|
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Dec. 31, 2013
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2021 Notes [Member] | Debt Instrument, Redemption, Period One [Member]
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| Debt Instrument [Line Items] | |
| Redemption price, percentage | 103.375% |
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2021 Notes [Member] | Debt Instrument, Redemption, Period Two [Member]
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|
| Debt Instrument [Line Items] | |
| Redemption price, percentage | 102.25% |
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2021 Notes [Member] | Debt Instrument, Redemption, Period Three [Member]
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|
| Debt Instrument [Line Items] | |
| Redemption price, percentage | 101.125% |
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2021 Notes [Member] | Debt Instrument, Redemption, Period Four [Member]
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|
| Debt Instrument [Line Items] | |
| Redemption price, percentage | 100.00% |
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2019 Notes [Member] | Debt Instrument, Redemption, Period One [Member]
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| Debt Instrument [Line Items] | |
| Redemption price, percentage | 104.313% |
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2019 Notes [Member] | Debt Instrument, Redemption, Period Two [Member]
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|
| Debt Instrument [Line Items] | |
| Redemption price, percentage | 102.875% |
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2019 Notes [Member] | Debt Instrument, Redemption, Period Three [Member]
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|
| Debt Instrument [Line Items] | |
| Redemption price, percentage | 101.438% |
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2019 Notes [Member] | Debt Instrument, Redemption, Period Four [Member]
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|
| Debt Instrument [Line Items] | |
| Redemption price, percentage | 100.00% |