Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ 331,237	$ 322,589	$ 289,977
Additions	70,722	94,264	109,012
Deductions	(58,663)	(27,874)	(30,719)
Translation	(18,197)	(57,742)	(45,681)
Balance at end of period	325,099	331,237	322,589
Allowance for Doubtful Accounts [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	12,768	9,373	5,098
Additions	5,367	6,656	6,567
Deductions	(1,647)	(2,615)	(800)
Translation	(121)	(646)	(1,492)
Balance at end of period	16,367	12,768	9,373
Valuation Allowance of Deferred Tax Assets [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	297,891	301,012	270,057
Additions	36,778	49,879	76,085
Deductions	(24,967)	(401)	(4,389)
Translation	(19,082)	(52,599)	(40,741)
Balance at end of period	290,620	297,891	301,012
Provision For Contingencies [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	20,578	12,204	14,822
Additions	28,577	37,729	26,360
Deductions	(32,049)	(24,858)	(25,530)
Translation	1,006	(4,497)	(3,448)
Balance at end of period	18,112	20,578	12,204
Legal Reserve Accrual [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Additions	28,577	37,729	26,360
Legal Reserve Settlements [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Deductions	(20,554)	(23,415)	(23,101)
Legal Reserve Reclassifications [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Deductions	$ (11,495)	$ (1,443)	$ (2,429)

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

Amount of increase (decrease) 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 adjustments.

+ 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

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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

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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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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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