Revenue - Revenue by Geography (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue [Line Items]
Total net sales	$ 712,019	$ 581,113	$ 2,050,002	$ 1,736,824
Intersegment elimination
Disaggregation of Revenue [Line Items]
Total net sales	(671)	(908)	(3,007)	(2,297)
U.S. | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	365,152	286,664	982,141	876,411
North America, excluding U.S. | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	26,056	24,803	81,883	71,632
Europe | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	175,278	140,801	536,884	419,185
Asia | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	121,314	103,585	365,629	301,986
Other | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	24,890	26,168	86,472	69,907
FMT
Disaggregation of Revenue [Line Items]
Total net sales	251,297	220,553	745,202	666,187
FMT | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	251,297	220,553	745,202	666,187
FMT | Intersegment elimination
Disaggregation of Revenue [Line Items]
Total net sales	0	(194)	(737)	(533)
FMT | U.S. | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	137,046	122,352	399,123	384,429
FMT | North America, excluding U.S. | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	13,685	13,706	42,645	38,741
FMT | Europe | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	48,802	43,855	150,098	127,906
FMT | Asia | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	36,861	26,010	108,505	77,144
FMT | Other | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	14,903	14,824	45,568	38,500
HST
Disaggregation of Revenue [Line Items]
Total net sales	301,637	219,671	825,440	658,361
HST | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	301,637	219,671	825,440	658,361
HST | Intersegment elimination
Disaggregation of Revenue [Line Items]
Total net sales	(650)	(707)	(2,228)	(1,744)
HST | U.S. | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	148,195	98,943	355,759	288,042
HST | North America, excluding U.S. | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	5,193	5,417	16,687	15,911
HST | Europe | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	86,509	59,509	258,838	182,596
HST | Asia | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	59,990	52,197	178,971	161,342
HST | Other | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	2,400	4,312	17,413	12,214
FSDP
Disaggregation of Revenue [Line Items]
Total net sales	159,085	140,889	479,360	412,276
FSDP | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	159,085	140,889	479,360	412,276
FSDP | Intersegment elimination
Disaggregation of Revenue [Line Items]
Total net sales	(21)	(7)	(42)	(20)
FSDP | U.S. | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	79,911	65,369	227,259	203,940
FSDP | North America, excluding U.S. | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	7,178	5,680	22,551	16,980
FSDP | Europe | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	39,967	37,437	127,948	108,683
FSDP | Asia | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	24,463	25,378	78,153	63,500
FSDP | Other | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	$ 7,587	$ 7,032	$ 23,491	$ 19,193