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Consolidated Statement of Comprehensive Income - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Statement of Comprehensive Income [Abstract]      
Net income $ 516,137 $ 369,771 $ 447,558
Foreign currency translation adjustments 9,507 16,470 (28,478)
Total comprehensive income 525,644 386,241 419,080
Total comprehensive income attributable to noncontrolling interests (235) (176) (191)
Total comprehensive income attributable to common stockholders $ 525,409 $ 386,065 $ 418,889