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 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Noncontrolling Interest [Abstract]        
Non-controlling interests, beginning of period     $ 48,178 $ 58,858
Net earnings attributable to non-controlling interests $ 9,902 $ 7,283 21,929 12,861
Foreign currency translation adjustment     (603) (209)
Capital contributions from non-controlling interests     2,905 485
Capital distributions to non-controlling interests     (5,199) (2,350)
Non-controlling interests, end of period $ 67,210 $ 69,645 $ 67,210 $ 69,645