The amount of decrease that relates to an irrevocable action that relieves the employer (or the plan) of primary responsibility for a benefit obligation and eliminates significant risks related to the obligation and the assets used to effect the settlement. Also includes the amount of decrease that is related to an event that significantly reduces the expected years of future service of present employees or eliminates for a significant number of employees the accrual of defined benefits for some or all of their future services.

No definition available.

Other Comprehensive Earnings (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Foreign currency translation adjustments [Abstract]
Total foreign currency translation adjustments									$ 55,450	$ 20,314	$ (59,970)
Pension and other postretirement benefit plans [Abstract]
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax									(3,197)	(1,184)	3,241
Pension and other postretirement benefit plans									9,399	5,408	(11,138)
Changes in fair value of cash flow hedges [Abstract]
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax									(607)	359	717
Changes in fair value of cash flow hedges, net of tax									(2,077)	1,348	2,699
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	$ (66,802)				$ (122,252)				(66,802)	(122,252)
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax	(88,126)				(97,525)				(88,126)	(97,525)
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	1,674				3,751				1,674	3,751
Accumulated Other Comprehensive Income (Loss), Net of Tax	(153,254)				(216,026)				(153,254)	(216,026)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net earnings	$ 182,106	$ 200,300	$ 124,766	$ 176,279	$ 168,122	$ 206,006	$ 198,085	$ 105,705	683,451	677,918	570,267
Other comprehensive earnings (loss)									62,772	27,070	(68,409)
Comprehensive earnings									746,223	704,988	501,858
Other Comprehensive (Income) Loss, Defined Benefit Plan, Reclassification Adjustment from AOCI, after Tax [Abstract]
Amortization of actuarial losses									8,583	759	4,893
Amortization of prior service costs and transition obligation									1,442	2,729	3,631
Settlements and Curtailments									25	961	12,565
Total before tax									10,050	4,449	21,089
Tax benefit									(2,184)	(906)	(4,459)
Net of tax									7,866	3,543	16,630
Other Comprehensive Income Loss Reclassification Adjustment From AOCI Derivatives Net of Tax [Abstract]
Net (gains) losses reclassified into earnings									(817)	(186)	1,950
Tax expense (benefit)									185	39	(409)
Net (gains) losses reclassified into earnings									(632)	(147)	1,541
Reclassification of foreign currency translation losses (gains) to earnings									0	25,339	0
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, before Tax									0	25,339	0
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Reclassification Adjustment from AOCI, Realized upon Sale or Liquidation, Tax									$ 0	$ 0	$ 0