Revenue - Revenue by Geography (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Disaggregation of Revenue [Line Items]
Total net sales	$ 2,351,646	$ 2,494,573	$ 2,483,666
Intersegment elimination
Disaggregation of Revenue [Line Items]
Total net sales	(3,471)	(3,671)	(1,333)
U.S. Plans
Disaggregation of Revenue [Line Items]
Total net sales	1,163,308	1,257,253	1,230,554
North America, excluding U.S.
Disaggregation of Revenue [Line Items]
Total net sales	97,343	106,319	105,466
Europe
Disaggregation of Revenue [Line Items]
Total net sales	573,918	593,405	615,571
Asia
Disaggregation of Revenue [Line Items]
Total net sales	424,451	430,175	420,333
Other
Disaggregation of Revenue [Line Items]
Total net sales	96,097	111,092	113,075
FMT | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	895,474	956,523	951,275
FMT | Intersegment elimination
Disaggregation of Revenue [Line Items]
Total net sales	(830)	(505)	(277)
FMT | U.S. Plans | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	505,757	541,994	540,697
FMT | North America, excluding U.S. | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	52,822	58,256	57,917
FMT | Europe | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	174,945	170,698	172,630
FMT | Asia | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	109,089	125,031	119,822
FMT | Other | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	53,691	61,049	60,486
HST | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	893,353	912,623	895,970
HST | Intersegment elimination
Disaggregation of Revenue [Line Items]
Total net sales	(2,609)	(1,823)	(449)
HST | U.S. Plans | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	387,652	411,680	392,140
HST | North America, excluding U.S. | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	21,319	21,735	18,770
HST | Europe | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	249,793	263,523	278,634
HST | Asia | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	221,139	201,765	189,342
HST | Other | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	16,059	15,743	17,533
FSDP | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	562,819	625,427	636,421
FSDP | Intersegment elimination
Disaggregation of Revenue [Line Items]
Total net sales	(32)	(1,343)	(607)
FSDP | U.S. Plans | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	269,899	303,579	297,717
FSDP | North America, excluding U.S. | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	23,202	26,328	28,779
FSDP | Europe | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	149,180	159,184	164,307
FSDP | Asia | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	94,223	103,379	111,169
FSDP | Other | Operating Segments
Disaggregation of Revenue [Line Items]
Total net sales	$ 26,347	$ 34,300	$ 35,056