Revenue - Revenue by Geography (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Total net sales	$ 685,947	$ 561,249	$ 1,337,983	$ 1,155,711
Intersegment elimination
Disaggregation of Revenue [Line Items]
Total net sales	(1,154)	(607)	(2,336)	(1,389)
U.S. | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	316,809	291,042	616,989	589,747
North America, excluding U.S. | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	26,706	20,916	55,827	46,829
Europe | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	193,628	126,562	361,606	278,384
Asia | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	115,996	103,698	244,315	198,401
Other | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	33,962	19,638	61,582	43,739
FMT
Disaggregation of Revenue [Line Items]
Total net sales	250,839	218,922	493,905	445,634
FMT | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	250,839	218,922	493,905	445,634
FMT | Intersegment elimination
Disaggregation of Revenue [Line Items]
Total net sales	(438)	(190)	(737)	(339)
FMT | U.S. | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	131,116	134,299	262,077	262,077
FMT | North America, excluding U.S. | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	14,131	11,359	28,960	25,035
FMT | Europe | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	52,651	39,386	101,296	84,051
FMT | Asia | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	37,906	24,349	71,644	51,134
FMT | Other | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	15,473	9,719	30,665	23,676
HST
Disaggregation of Revenue [Line Items]
Total net sales	274,296	215,234	523,803	438,690
HST | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	274,296	215,234	523,803	438,690
HST | Intersegment elimination
Disaggregation of Revenue [Line Items]
Total net sales	(716)	(434)	(1,578)	(1,037)
HST | U.S. | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	113,847	93,103	207,564	189,099
HST | North America, excluding U.S. | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	4,422	4,526	11,494	10,494
HST | Europe | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	95,564	56,000	172,329	123,087
HST | Asia | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	51,262	57,806	118,981	109,145
HST | Other | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	9,917	4,233	15,013	7,902
FSDP
Disaggregation of Revenue [Line Items]
Total net sales	160,812	127,093	320,275	271,387
FSDP | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	160,812	127,093	320,275	271,387
FSDP | Intersegment elimination
Disaggregation of Revenue [Line Items]
Total net sales	0	17	(21)	(13)
FSDP | U.S. | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	71,846	63,640	147,348	138,571
FSDP | North America, excluding U.S. | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	8,153	5,031	15,373	11,300
FSDP | Europe | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	45,413	31,176	87,981	71,246
FSDP | Asia | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	26,828	21,543	53,690	38,122
FSDP | Other | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	$ 8,572	$ 5,686	$ 15,904	$ 12,161