Segment Information - Schedule Of Reportable Segment Information (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Revenues	$ 375,254	$ 351,014	$ 349,675	$ 326,038	$ 361,783	$ 331,096	$ 339,331	$ 325,894	$ 1,401,981	$ 1,358,104	$ 1,196,809
Operating income									186,230	173,479	39,577
Restructuring charges (Note 2)									13,846	13,247	17,632
Currency exchange losses, net									19,814	2,330	5,127
Product Liability Expense									26,619
Product liability (Note 19) and other operating expense									28,372	45,327	126,432
Strategic transaction costs (Note 13)									4,400	421	4,225
Adjusted operating income (loss)									250,909	234,804	192,993
Depreciation and amortization									38,020	37,852	37,877
Adjusted EBITDA									288,929	272,656	230,870
Pension (income) expense									(933)	(5,901)	(7,142)
Total Assets	1,739,693				1,608,012				1,739,693	1,608,012	1,684,826
Capital expenditures									36,604	33,960	23,725
Americas
Segment Reporting Information [Line Items]
Revenues									915,118	854,287	736,847
Corporate
Segment Reporting Information [Line Items]
Revenues									0	0	0
Adjusted operating income (loss)									(35,597)	(31,901)	(32,987)
Depreciation and amortization									391	406	405
Adjusted EBITDA									(35,206)	(31,495)	(32,582)
Pension (income) expense									0	0	0
Total Assets	22,367				10,842				22,367	10,842	12,099
Capital expenditures									0	0	0
Operating Segments | Americas
Segment Reporting Information [Line Items]
Revenues									915,118	854,287	736,847
Adjusted operating income (loss)									$ 226,596	$ 206,839	$ 175,589
Adjusted operating margin %									24.80%	24.20%	23.80%
Depreciation and amortization									$ 24,691	$ 24,143	$ 23,207
Adjusted EBITDA									$ 251,287	$ 230,982	$ 198,796
Adjusted EBITDA, Percentage									27.50%	27.00%	27.00%
Pension (income) expense									$ (6,111)	$ 1,201	$ 246
Total Assets	1,131,911				1,077,938				1,131,911	1,077,938	1,110,698
Capital expenditures									26,823	25,001	16,910
Operating Segments | International
Segment Reporting Information [Line Items]
Revenues									486,863	503,817	459,962
Adjusted operating income (loss)									$ 59,910	$ 59,866	$ 50,391
Adjusted operating margin %									12.30%	11.90%	11.00%
Depreciation and amortization									$ 12,938	$ 13,303	$ 14,265
Adjusted EBITDA									$ 72,848	$ 73,169	$ 64,656
Adjusted EBITDA, Percentage									15.00%	14.50%	14.10%
Pension (income) expense									$ (7,044)	$ (7,102)	$ (6,896)
Total Assets	584,195				522,042				584,195	522,042	563,480
Capital expenditures									9,781	8,959	6,815
Reconciling Items
Segment Reporting Information [Line Items]
Revenues									0	0	0
Adjusted operating income (loss)									0	0	0
Depreciation and amortization									0	0	0
Adjusted EBITDA									0	0	0
Pension (income) expense									0	0	0
Total Assets	$ 1,220				$ (2,810)				1,220	(2,810)	(1,451)
Capital expenditures									$ 0	$ 0	$ 0