Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Net earnings	$ 93,567	$ 97,047
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments, net of tax of $4,876 and $5,187 for the three months ended March 31, 2017 and 2016	8,860	9,580
Other comprehensive income	8,860	9,580
Comprehensive income	102,427	106,627
Less comprehensive income attributable to the noncontrolling interest	249	577
Comprehensive income attributable to shareholders	$ 102,178	$ 106,050

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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Amount after tax, before reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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