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Valuation and Qualifying Accounts and Allowances (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Allowance for Doubtful Accounts      
Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Year $ 26,283 $ 20,416 $ 33,499
Additions Charged to Operations 5,813 11,507 4,471
Net Deductions and Other (7,726) (5,640) (17,554)
Balance at End of Year 24,370 26,283 20,416
Allowance for Inventory Obsolescence      
Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Year 46,899 49,113 46,585
Additions Charged to Operations 33,305 39,235 35,027
Net Deductions and Other (34,489) (41,449) (32,499)
Balance at End of Year 45,715 46,899 49,113
Income Tax Valuation Allowances      
Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Year 133,297 64,641 67,705
Additions Charged to Operations 8,161 73,497 6,564
Net Deductions and Other (64,124) (4,841) (9,628)
Balance at End of Year $ 77,334 $ 133,297 $ 64,641