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Income Taxes Text (Details) (USD $)
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3 Months Ended | 6 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
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Jun. 30, 2014
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Jun. 30, 2013
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Jun. 30, 2014
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Jun. 30, 2013
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Jun. 30, 2014
Prepaid Expenses and Other Current Assets [Member]
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Dec. 31, 2013
Prepaid Expenses and Other Current Assets [Member]
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Jun. 30, 2014
Other Assets [Member]
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Dec. 31, 2013
Other Assets [Member]
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Jun. 30, 2014
Future amortization through 2014 [Member]
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Jun. 30, 2014
Future amortization through 2015 [Member]
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| Provision for income taxes | $ 12,045,000 | $ 27,384,000 | $ 26,615,000 | $ 46,721,000 | ||||||
| Income before provision for income taxes | (8,877,000) | 21,833,000 | (29,670,000) | 37,928,000 | ||||||
| Effective Tax Rate, Percent | (135.70%) | 125.40% | (89.70%) | 123.20% | ||||||
| Federal Statutory Income Tax Rate, Percent | 35.00% | |||||||||
| Potential Change in Unrecognized Tax Benefits | 48,000,000 | 48,000,000 | ||||||||
| Prepaid Taxes | $ 26,800,000 | $ 28,500,000 | $ 6,800,000 | $ 20,400,000 | $ 13,400,000 | $ 20,200,000 | ||||