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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

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