Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details)

v2.4.1.9
Income Taxes (Details) (USD $)
 3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2014
Deferred Tax Provision Benefit [Line Items]      
Total deferred tax provision (benefit) $ (14,467,000)us-gaap_DeferredIncomeTaxExpenseBenefit $ (17,054,000)us-gaap_DeferredIncomeTaxExpenseBenefit  
Provision for income taxes 54,006,000us-gaap_IncomeTaxExpenseBenefit 52,097,000us-gaap_IncomeTaxExpenseBenefit  
Gross Unrecognized Tax Benefits Reconcilement [Line Items]      
Unrecognized Tax Benefits, Beginning Balance 1,200,000us-gaap_UnrecognizedTaxBenefits    
Unrecognized Tax Benefits, Ending Balance 24,300,000us-gaap_UnrecognizedTaxBenefits 2,800,000us-gaap_UnrecognizedTaxBenefits  
Provision (benefit) for income taxes reconcilement      
Provision for income taxes 54,006,000us-gaap_IncomeTaxExpenseBenefit 52,097,000us-gaap_IncomeTaxExpenseBenefit  
Income Taxes Textuals [Abstract]      
Total interest accrued on the unrecognized tax benefits 300,000us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued 200,000us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued 100,000us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued
Reasonably possible change in unrecognized tax benefits in the next 12 months $ 23,100,000us-gaap_SignificantChangeInUnrecognizedTaxBenefitsIsReasonablyPossibleAmountOfUnrecordedBenefit