Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Income (Loss) (Parenthetical) (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2020		Dec. 31, 2019		Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive (loss) income into earnings, Gains and Losses on Hedging Derivatives	$ 7,216,000	[1]	$ 2,333,000	[2]	$ (132,000)
Reclassification adjustment for (gain) loss on early retiree medical plan included in net earnings, net of income taxes of $17, $49 and ($108) for 2020, 2019 and 2018, respectively	72,000	[1]	57,000	[2]	(350,000)
Reclassification adjustment for (gain) loss on settlement of hedging derivatives included in net earnings, tax effect	2,500,000		700,000		0
AOCI reclassification impact on tax	17,000		49,000		$ (108,000)
Cumulative foreign currency translation loss	158,600
Cost of Products Sold [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Amounts reclassified from accumulated other comprehensive (loss) income into earnings, Gains and Losses on Hedging Derivatives	7,216,000		2,333,000
Reclassification adjustment for (gain) loss on early retiree medical plan included in net earnings, net of income taxes of $17, $49 and ($108) for 2020, 2019 and 2018, respectively	72,000		57,000
Reclassification adjustment for (gain) loss on settlement of hedging derivatives included in net earnings, tax effect	2,500,000		700,000
AOCI reclassification impact on tax	$ 17,000		$ 49,000

[1] Includes $7,216 and $72 net-of-tax impact of accumulated other comprehensive income reclassifications into cost of products sold for net losses on commodity contracts and adjustment to early retiree medical plan, respectively. The tax impacts of these reclassifications were $2,500 and $17, respectively. Also includes a $158.6 million reclassification of cumulative foreign currency translation losses into losses and impairments of assets, of which there was no tax impact.

[2] Includes $2,333 and $57 net-of-tax impact of accumulated other comprehensive income reclassifications into cost of products sold for net losses on commodity contracts and adjustment to early retiree medical plan, respectively. The tax impacts of these reclassifications were $700 and $49, respectively.