Condensed Consolidated Statement of Comprehensive Income Statement - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Condensed Consolidated Statements of Comprehensive Income [Abstract]
Net earnings	$ 64,030	$ 31,277	$ 151,815	$ 133,055
Other comprehensive income (loss)
Foreign currency translation adjustments, net of tax of $162 and $(91), $(872) and $(11) for the three and six months ended September 30, 2020 and 2019, respectively		(344)	(3,280)	(40)
foreign currency translation tax adjustment	162	(91)	(872)	(11)
Total other comprehensive income (loss)	609	(344)	(3,280)	(40)
Comprehensive income	$ 64,639	30,933	$ 148,535	$ 133,015
Accumulated Other comprehensive (Loss) Income [Member]
Other comprehensive income (loss)
Total other comprehensive income (loss)		$ (344)

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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