Quarterly report pursuant to Section 13 or 15(d)

Earnings Per Share (EPS) - Summary of Earnings Per Share (EPS) (Detail)

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Earnings Per Share (EPS) - Summary of Earnings Per Share (EPS) (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Earnings Per Share [Abstract]        
Net income attributable to controlling interest $ 15,681 $ 8,281 $ 3,132 $ 8,873
Basic EPS (in shares) 121,078,359 119,483,780 120,726,004 119,177,431
Basic EPS (in dollars per share) $ 0.13 $ 0.07 $ 0.03 $ 0.07
Stock options and restricted stock (in shares) 1,685,888 2,376,231 1,860,052 2,320,792
Stock Options and Restricted Stock, Price per Share $ 0 $ 0 $ 0 $ 0
Diluted EPS (in shares) 122,764,247 121,860,011 122,586,056 121,498,223
Diluted EPS (in dollars per share) $ 0.13 $ 0.07 $ 0.03 $ 0.07