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, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Noncontrolling Interest [Abstract]        
Non-controlling interests, beginning of period     $ 49,598 $ 43,120
Net earnings attributable to non-controlling interests 3,956 1,484 9,450 4,144
Foreign currency translation adjustment     (138) (15)
Capital contribution by non-controlling interests     83 3,635
Capital distribution to non-controlling interests     (3,250) (2,575)
Non-controlling interests, end of period $ 55,743 $ 48,309 $ 55,743 $ 48,309