Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Equity Attributable to Noncontrolling Interests (Detail)

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Stockholders' Equity - Equity Attributable to Noncontrolling Interests (Detail) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Noncontrolling Interest [Abstract]    
Non-controlling interests, beginning of period $ 81,881 $ 48,178
Net earnings 12,640 12,027
Foreign currency translation adjustment 1,683 945
Capital contributions 46 2,905
Capital distributions (892) (3,988)
Non-controlling interests, end of period $ 95,358 $ 60,067