Valuation and Qualifying Accounts and Allowances (Detail) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Allowance for Doubtful Accounts
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	$ 24,370	$ 26,283	$ 20,416
Additions Charged to Operations	9,165	5,813	11,507
Net Deductions and Other	(12,159)	(7,726)	(5,640)
Balance at End of Year	21,376	24,370	26,283
Allowance for Inventory Obsolescence
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	45,715	46,899	49,113
Additions Charged to Operations	31,455	33,305	39,235
Net Deductions and Other	(40,394)	(34,489)	(41,449)
Balance at End of Year	36,776	45,715	46,899
Income Tax Valuation Allowances
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	77,334	133,297	64,641
Additions Charged to Operations	15,772	8,161	73,497
Net Deductions and Other	(18,981)	(64,124)	(4,841)
Balance at End of Year	$ 74,125	$ 77,334	$ 133,297

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

No definition available.

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- Definition

Total of allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 4
-Subparagraph (SX 210.12-09)
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

+ Details

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- Definition

Amount of increase in the allowances and reserves, which consist of the valuation and qualifying accounts that are either netted against the cost of an asset or that reflect a liability established to represent expected future costs, from charges to costs and expenses.

+ References

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- Definition

Total of the deductions in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability established to represent expected future costs, representing receivables written off as uncollectible and portions of the reserves utilized, respectively.

+ References

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