Revenue - Revenue by Geography (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Disaggregation of Revenue [Line Items]
Total net sales	$ 594,462	$ 622,231
Intersegment elimination
Disaggregation of Revenue [Line Items]
Total net sales	(782)	(1,740)
U.S. | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	298,705	311,877
North America, excluding U.S. | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	25,913	23,929
Europe | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	151,822	156,058
Asia | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	94,703	103,536
Other | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	24,101	28,571
FMT
Disaggregation of Revenue [Line Items]
Total net sales	226,712	242,336
FMT | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	226,712	242,336
FMT | Intersegment elimination
Disaggregation of Revenue [Line Items]
Total net sales	(149)	(186)
FMT | U.S. | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	127,778	138,149
FMT | North America, excluding U.S. | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	13,676	13,057
FMT | Europe | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	44,665	43,624
FMT | Asia | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	26,785	31,917
FMT | Other | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	13,957	15,775
HST
Disaggregation of Revenue [Line Items]
Total net sales	223,456	224,688
HST | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	223,456	224,688
HST | Intersegment elimination
Disaggregation of Revenue [Line Items]
Total net sales	(603)	(602)
HST | U.S. | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	95,996	99,051
HST | North America, excluding U.S. | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	5,968	4,892
HST | Europe | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	67,087	69,372
HST | Asia | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	51,339	48,059
HST | Other | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	3,669	3,916
FSDP
Disaggregation of Revenue [Line Items]
Total net sales	144,294	155,207
FSDP | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	144,294	155,207
FSDP | Intersegment elimination
Disaggregation of Revenue [Line Items]
Total net sales	(30)	(952)
FSDP | U.S. | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	74,931	74,677
FSDP | North America, excluding U.S. | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	6,269	5,980
FSDP | Europe | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	40,070	43,062
FSDP | Asia | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	16,579	23,560
FSDP | Other | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	$ 6,475	$ 8,880