Segment Information (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2015 |
Sep. 25, 2015 |
Jun. 26, 2015 |
Mar. 27, 2015 |
Dec. 31, 2014 |
Sep. 26, 2014 |
Jun. 27, 2014 |
Mar. 28, 2014 |
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
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| Net sales | $ 1,061,464 | $ 969,144 | $ 1,025,375 | $ 911,070 | $ 1,206,356 | $ 1,164,453 | $ 1,199,336 | $ 1,054,331 | $ 3,967,053 | [1] | $ 4,624,476 | [1] | $ 4,207,209 | [1] | ||||||||
| Income before income taxes | [2] | 236,902 | 358,248 | 302,795 | ||||||||||||||||||
| Interest expense | [2] | 47,743 | 51,305 | 103,597 | ||||||||||||||||||
| Restructuring and other related charges | [2] | 61,177 | 58,121 | 35,502 | ||||||||||||||||||
| Segment Operating Income | [2] | 345,822 | 467,674 | 441,894 | ||||||||||||||||||
| Depreciation, amortization and impairment charges | 154,542 | 174,724 | 119,258 | |||||||||||||||||||
| Capital expenditures | 69,877 | 84,458 | 71,482 | |||||||||||||||||||
| Equity Method Investments | 45,911 | 52,496 | 45,911 | 52,496 | ||||||||||||||||||
| Assets | 6,732,919 | 7,211,517 | [3] | 6,732,919 | 7,211,517 | [3] | ||||||||||||||||
| Gas and Fluid Handling [Member] | ||||||||||||||||||||||
| Net sales | 1,981,816 | 2,329,598 | 2,104,048 | |||||||||||||||||||
| Segment Operating Income | 194,469 | 254,240 | 270,708 | |||||||||||||||||||
| Depreciation, amortization and impairment charges | 68,457 | 96,763 | 62,792 | |||||||||||||||||||
| Capital expenditures | 34,303 | 32,558 | 37,995 | |||||||||||||||||||
| Equity Method Investments | 3,805 | 7,085 | 3,805 | 7,085 | ||||||||||||||||||
| Assets | 3,482,471 | 3,648,860 | [3] | 3,482,471 | 3,648,860 | [3] | ||||||||||||||||
| Fabrication Technology [Member] | ||||||||||||||||||||||
| Net sales | 1,985,237 | 2,294,878 | 2,103,161 | |||||||||||||||||||
| Segment Operating Income | 198,337 | 265,813 | 219,634 | |||||||||||||||||||
| Depreciation, amortization and impairment charges | 84,913 | 76,406 | 55,339 | |||||||||||||||||||
| Capital expenditures | 35,261 | 47,955 | 33,437 | |||||||||||||||||||
| Equity Method Investments | 42,106 | 45,411 | 42,106 | 45,411 | ||||||||||||||||||
| Assets | 3,157,078 | 3,470,426 | [3] | 3,157,078 | 3,470,426 | [3] | ||||||||||||||||
| Corporate and Other [Member] | ||||||||||||||||||||||
| Segment Operating Income | (46,984) | (52,379) | (48,448) | |||||||||||||||||||
| Depreciation, amortization and impairment charges | 1,172 | 1,555 | 1,127 | |||||||||||||||||||
| Capital expenditures | 313 | 3,945 | $ 50 | |||||||||||||||||||
| Assets | $ 93,370 | $ 92,231 | [3] | $ 93,370 | $ 92,231 | [3] | ||||||||||||||||
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