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BUSINESS COMBINATIONS - Schedule of Unaudited Pro forma Combined Information (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Business Combinations [Abstract]        
Revenue $ 154,729 $ 145,911 $ 289,715 $ 273,408
Operating (loss) income (47,273) 15,625 (40,685) 17,548
Net (loss) income attributable to common stockholders $ (53,673) $ 5,208 $ (53,889) $ (2,435)
Basic weighted average common shares outstanding (in shares) 41,811 41,132 41,698 41,064
Basic earnings per share attributable to common stockholders (in USD per share) $ (1.28) $ 0.13 $ (1.29) $ (0.06)
Diluted weighted average shares outstanding (in shares) 41,811 41,598 41,698 41,064
Diluted earnings per share attributable to common stockholders (in USD per share) $ (1.28) $ 0.13 $ (1.29) $ (0.06)