XML 57 R35.htm IDEA: XBRL DOCUMENT v2.4.1.9
Significant Accounting Policies - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Significant Accounting Policies [Line Items]    
Amount restated as a result of adoption of new guidance $ 375,416us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest $ 354,306us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Adjustments for New Accounting Pronouncement [Member]    
Significant Accounting Policies [Line Items]    
Amount restated as a result of adoption of new guidance   $ 12,000us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
/ us-gaap_AdjustmentsForNewAccountingPronouncementsAxis
= us-gaap_NewAccountingPronouncementMember