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Segment Information- Reporting Information by Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Interest expense |  |  |  |  |  |  |  |  | $ 130,972 | $ 144,948 | $ 135,969
Interest income |  |  |  |  |  |  |  |  | 8,881 | 8,491 | 6,752
Net Income (Loss) Attributable to Parent | $ 141,569 | $ 157,305 | $ 139,959 | $ 131,434 | $ 296,448 | $ 178,912 | $ 164,058 | $ 172,247 | 570,267 | 811,665 | 508,892
Reconciliation from Segment Totals to Consolidated [Abstract] |  |  |  |  |  |  |  |  |  |  |
Revenue | 1,808,950 | 1,747,403 | 1,798,094 | 1,637,671 | 1,752,530 | 1,747,775 | 1,737,371 | 1,583,210 | 6,992,118 | 6,820,886 | 6,043,224
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract] |  |  |  |  |  |  |  |  |  |  |
Earnings from continuing operations before provision for income taxes and discontinued operations |  |  |  |  |  |  |  |  | 725,378 | 875,815 | 684,644
Provision for income taxes |  |  |  |  |  |  |  |  | 134,233 | 129,152 | 182,516
Earnings from continuing operations | 157,975 | $ 157,305 | $ 166,456 | $ 109,409 | 289,645 | $ 159,455 | $ 142,475 | $ 155,088 | $ 591,145 | $ 746,663 | $ 502,128
Operating Margins [Abstract] |  |  |  |  |  |  |  |  |  |  |
Segment Margins |  |  |  |  |  |  |  |  | 14.00% | 17.10% | 15.40%
Earnings from continuing operations (in hundredths) |  |  |  |  |  |  |  |  | 8.50% | 10.90% | 8.30%
Depreciation and Amortization [Abstract] |  |  |  |  |  |  |  |  |  |  |
Depreciation and Amortization |  |  |  |  |  |  |  |  | $ 282,580 | $ 283,278 | $ 249,672
Capital Expenditures [Abstract] |  |  |  |  |  |  |  |  |  |  |
Capital Expenditures |  |  |  |  |  |  |  |  | 170,994 | 170,068 | 139,578
Total Assets [Abstract] |  |  |  |  |  |  |  |  |  |  |
Assets of continuing operations | 8,365,771 |  |  |  | 8,792,806 |  |  |  | 8,365,771 | 8,792,806 |
Total assets | 8,365,771 |  |  |  | 10,658,359 |  |  |  | 8,365,771 | 10,658,359 |
Engineered Systems Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Reconciliation from Segment Totals to Consolidated [Abstract] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 2,742,948 | 2,667,984 | 2,446,665
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract] |  |  |  |  |  |  |  |  |  |  |
Earnings from continuing operations before provision for income taxes and discontinued operations |  |  |  |  |  |  |  |  | $ 451,270 | $ 604,484 | $ 399,209
Operating Margins [Abstract] |  |  |  |  |  |  |  |  |  |  |
Segment Margins |  |  |  |  |  |  |  |  | 16.50% | 22.70% | 16.30%
Depreciation and Amortization [Abstract] |  |  |  |  |  |  |  |  |  |  |
Depreciation and Amortization |  |  |  |  |  |  |  |  | $ 75,879 | $ 85,447 | $ 78,173
Capital Expenditures [Abstract] |  |  |  |  |  |  |  |  |  |  |
Capital Expenditures |  |  |  |  |  |  |  |  | 47,044 | 37,495 | 32,374
Total Assets [Abstract] |  |  |  |  |  |  |  |  |  |  |
Assets of continuing operations | 3,070,019 |  |  |  | 3,097,066 |  |  |  | 3,070,019 | 3,097,066 |
Fluids Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Reconciliation from Segment Totals to Consolidated [Abstract] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 2,797,338 | 2,555,065 | 1,977,050
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract] |  |  |  |  |  |  |  |  |  |  |
Earnings from continuing operations before provision for income taxes and discontinued operations |  |  |  |  |  |  |  |  | $ 389,804 | $ 368,630 | $ 246,545
Operating Margins [Abstract] |  |  |  |  |  |  |  |  |  |  |
Segment Margins |  |  |  |  |  |  |  |  | 13.90% | 14.40% | 12.50%
Depreciation and Amortization [Abstract] |  |  |  |  |  |  |  |  |  |  |
Depreciation and Amortization |  |  |  |  |  |  |  |  | $ 140,444 | $ 135,821 | $ 101,266
Capital Expenditures [Abstract] |  |  |  |  |  |  |  |  |  |  |
Capital Expenditures |  |  |  |  |  |  |  |  | 86,566 | 90,625 | 68,147
Total Assets [Abstract] |  |  |  |  |  |  |  |  |  |  |
Assets of continuing operations | 3,458,153 |  |  |  | 3,410,634 |  |  |  | 3,458,153 | 3,410,634 |
Refrigeration and Food Equipment Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Reconciliation from Segment Totals to Consolidated [Abstract] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 1,453,093 | 1,599,105 | 1,620,339
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract] |  |  |  |  |  |  |  |  |  |  |
Earnings from continuing operations before provision for income taxes and discontinued operations |  |  |  |  |  |  |  |  | $ 136,119 | $ 193,822 | $ 283,628
Operating Margins [Abstract] |  |  |  |  |  |  |  |  |  |  |
Segment Margins |  |  |  |  |  |  |  |  | 9.40% | 12.10% | 17.50%
Depreciation and Amortization [Abstract] |  |  |  |  |  |  |  |  |  |  |
Depreciation and Amortization |  |  |  |  |  |  |  |  | $ 60,477 | $ 57,207 | $ 65,018
Capital Expenditures [Abstract] |  |  |  |  |  |  |  |  |  |  |
Capital Expenditures |  |  |  |  |  |  |  |  | 32,482 | 32,541 | 23,651
Total Assets [Abstract] |  |  |  |  |  |  |  |  |  |  |
Assets of continuing operations | 1,252,870 |  |  |  | 1,284,852 |  |  |  | 1,252,870 | 1,284,852 |
Corporate and Other [Member] |  |  |  |  |  |  |  |  |  |  |
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract] |  |  |  |  |  |  |  |  |  |  |
Earnings from continuing operations before provision for income taxes and discontinued operations |  |  |  |  |  |  |  |  | 129,724 | 154,664 | 115,521
Corporate, Non-Segment [Member] |  |  |  |  |  |  |  |  |  |  |
Depreciation and Amortization [Abstract] |  |  |  |  |  |  |  |  |  |  |
Depreciation and Amortization |  |  |  |  |  |  |  |  | 5,780 | 4,803 | 5,215
Capital Expenditures [Abstract] |  |  |  |  |  |  |  |  |  |  |
Capital Expenditures |  |  |  |  |  |  |  |  | 4,902 | 9,407 | 15,406
Total Assets [Abstract] |  |  |  |  |  |  |  |  |  |  |
Assets of continuing operations | $ 584,729 |  |  |  | $ 1,000,254 |  |  |  | 584,729 | 1,000,254 |
Intersegment Elimination [Member] |  |  |  |  |  |  |  |  |  |  |
Reconciliation from Segment Totals to Consolidated [Abstract] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | (1,261) | (1,268) | (830)
Total segments [Member] |  |  |  |  |  |  |  |  |  |  |
Reconciliation of Earnings from Continuing Operations from Segments to Consolidated [Abstract] |  |  |  |  |  |  |  |  |  |  |
Earnings from continuing operations before provision for income taxes and discontinued operations |  |  |  |  |  |  |  |  | $ 977,193 | $ 1,166,936 | $ 929,382

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