Revenue - Revenue by Geography (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Disaggregation of Revenue [Line Items]
Total net sales	$ 652,036	$ 594,462
Intersegment elimination
Disaggregation of Revenue [Line Items]
Total net sales	(1,182)	(782)
U.S. | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	300,180	298,705
North America, excluding U.S. | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	29,121	25,913
Europe | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	167,978	151,822
Asia | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	128,319	94,703
Other | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	27,620	24,101
FMT
Disaggregation of Revenue [Line Items]
Total net sales	243,066	226,712
FMT | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	243,066	226,712
FMT | Intersegment elimination
Disaggregation of Revenue [Line Items]
Total net sales	(299)	(149)
FMT | U.S. | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	130,961	127,778
FMT | North America, excluding U.S. | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	14,829	13,676
FMT | Europe | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	48,645	44,665
FMT | Asia | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	33,738	26,785
FMT | Other | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	15,192	13,957
HST
Disaggregation of Revenue [Line Items]
Total net sales	249,507	223,456
HST | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	249,507	223,456
HST | Intersegment elimination
Disaggregation of Revenue [Line Items]
Total net sales	(862)	(603)
HST | U.S. | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	93,717	95,996
HST | North America, excluding U.S. | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	7,072	5,968
HST | Europe | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	76,765	67,087
HST | Asia | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	67,719	51,339
HST | Other | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	5,096	3,669
FSDP
Disaggregation of Revenue [Line Items]
Total net sales	159,463	144,294
FSDP | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	159,463	144,294
FSDP | Intersegment elimination
Disaggregation of Revenue [Line Items]
Total net sales	(21)	(30)
FSDP | U.S. | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	75,502	74,931
FSDP | North America, excluding U.S. | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	7,220	6,269
FSDP | Europe | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	42,568	40,070
FSDP | Asia | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	26,862	16,579
FSDP | Other | Operating segments
Disaggregation of Revenue [Line Items]
Total net sales	$ 7,332	$ 6,475