Other Comprehensive Income Details 3 - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Net earnings	$ 184,763	$ 149,663	$ 126,562	$ 98,115	$ 334,426	$ 224,677
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent	9,152	$ 23,181	2,096	$ (24,028)	32,333	(21,932)
Comprehensive Income, Net of Tax (Note 9)	$ 193,915		$ 128,658		$ 366,759	$ 202,745