Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Equity Attributable to Non-controlling Interests (Detail)

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Stockholders' Equity - Equity Attributable to Non-controlling Interests (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Noncontrolling Interest [Abstract]        
Non-controlling interests, beginning of period     $ 81,881 $ 48,178
Net earnings $ 13,865 $ 9,902 26,505 21,929
Foreign currency translation adjustment     2,482 (603)
Capital contributions     46 2,905
Capital distributions     (6,753) (5,199)
Non-controlling interests, end of period $ 104,161 $ 67,210 $ 104,161 $ 67,210