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Other Comprehensive Earnings (Tables) | 12 Months Ended
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Dec. 31, 2018
Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule of All Amounts Recognized in Other Comprehensive Income (Loss) [Table Text Block] | The amounts recognized in other comprehensive earnings (loss) were as follows:
Year Ended December 31, 2018 | Pre-tax |  | Tax |  | Net of tax
Foreign currency translation adjustments | $ | (69,468) |  | $ | 9,498 |  | $ | (59,970)
Pension and other postretirement benefit plans | (14,379) |  | $ | 3,241 |  | $ | (11,138)
Changes in fair value of cash flow hedges | 3,416 |  | $ | (717) |  | $ | 2,699
Total other comprehensive (loss) earnings | $ | (80,431) |  | $ | 12,022 |  | $ | (68,409)
Year Ended December 31, 2017 | Pre-tax |  | Tax |  | Net of tax
Foreign currency translation adjustments | $ | 103,214 |  | $ | 43,842 |  | $ | 147,056
Pension and other post-retirement benefit plans | 28,784 |  | (7,397) |  | 21,387
Changes in fair value of cash flow hedges | (3,678) |  | 1,287 |  | (2,391)
Other | (1,687) |  | 202 |  | (1,485)
Total other comprehensive earnings | $ | 126,633 |  | $ | 37,934 |  | $ | 164,567
Year Ended December 31, 2016 | Pre-tax |  | Tax |  | Net of tax
Foreign currency translation adjustments | $ | (86,876) |  | $ | (18,827) |  | $ | (105,703)
Pension and other postretirement benefit plans | 5,936 |  | (4,560) |  | 1,376
Changes in fair value of cash flow hedges | 860 |  | (301) |  | 559
Other | (1,119) |  | 134 |  | (985)
Total other comprehensive loss | $ | (81,199) |  | $ | (23,554) |  | $ | (104,753)
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] | The components of accumulated other comprehensive earnings (loss) are as follows:
| December 31, 2018 |  | December 31, 2017
Cumulative foreign currency translation adjustments | $ | (142,567) |  | $ | (93,925)
Pension and other postretirement benefit plans | (102,932) |  | (100,538)
Changes in fair value of cash flow hedges and other | 2,403 |  | (296)
| $ | (243,096) |  | $ | (194,759)
Comprehensive Income (Loss) [Table Text Block] | Total comprehensive earnings (loss) were as follows:
| Years Ended December 31, |  |  |  |
| 2018 |  | 2017 |  | 2016
Net earnings | $ | 570,267 |  | $ | 811,665 |  | $ | 508,892
Other comprehensive (loss) earnings | (68,409) |  | 164,567 |  | (104,753)
Comprehensive earnings | $ | 501,858 |  | $ | 976,232 |  | $ | 404,139
Schedule of Amounts Reclassified from Accumulated Other Comprehensive Income Loss to Earnings [Table Text Block] | Amounts reclassified from accumulated other comprehensive earnings (loss) to earnings (loss) during the year ended December 31, 2018, 2017 and 2016 were as follows:
| Years Ended December 31, |  |  |  |  |  |
| 2018 |  | 2017 |  | 2016 |  |
Pension and other postretirement benefit plans: |  |  |  |  |  |  |
Amortization of actuarial losses | $ | 4,893 |  | $ | 7,735 |  | $ | 8,544 |  |
Amortization of prior service costs and transition obligation | 3,631 |  | 4,424 |  | 6,609 |  |
Settlement and curtailment | 12,565 |  | (3,844) |  | — |  |
Total before tax | 21,089 |  | 8,315 |  | 15,153 |  |
Tax benefit | (4,459) |  | (2,503) |  | (5,073) |  |
Net of tax | $ | 16,630 |  | $ | 5,812 |  | $ | 10,080 |  |
Cash flow hedges: |  |  |  |  |  |  |
Net losses (gains) reclassified into earnings | $ | 1,950 |  | $ | (908) |  | $ | 638 |  |
Tax (benefit) expense | $ | (409) |  | 318 |  | (223) |  |
Net of tax | $ | 1,541 |  | $ | (590) |  | $ | 415 |  |

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