v2.4.1.9
Supplemental Cash Flow Information (Detail) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Cash paid:      
Income taxes $ 238,615us-gaap_IncomeTaxesPaid $ 341,426us-gaap_IncomeTaxesPaid $ 322,018us-gaap_IncomeTaxesPaid
Interest 351,967us-gaap_InterestPaid 405,030us-gaap_InterestPaid 257,640us-gaap_InterestPaid
Non-cash investing and financing activities:      
Fixed assets under capital lease obligations $ 72,389us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1 $ 60,920us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1 $ 55,813us-gaap_NoncashOrPartNoncashAcquisitionFixedAssetsAcquired1