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, 2016
Mar. 31, 2015
Noncontrolling Interest [Abstract]    
Non-controlling interests, beginning of period $ 48,178 $ 58,858
Net earnings attributable to non-controlling interests 12,027 5,578
Foreign currency translation adjustment 945 (233)
Capital contributions by non-controlling interests 2,905  
Capital distributions to non-controlling interests (3,988) (1,150)
Non-controlling interests, end of period $ 60,067 $ 63,053