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STOCK BASED COMPENSATION - Summary of Class B/New TMM Unit Activity (Detail) - Class B Shares/New TMM Units
6 Months Ended
Jun. 30, 2017
$ / shares
shares
Shares/New TMM Units  
Beginning balance (in shares) 1,146,357
Exchanges (in shares) (186,100)
Forfeited (in shares) (1,592)
Ending balance (in shares) 958,665
Weighted Average Grant Date Fair Value  
Beginning balance (usd per share) | $ / shares $ 5.58
Exchanges (usd per share) | $ / shares 5.27
Forfeited (usd per share) | $ / shares 8.04
Ending balance (usd per share) | $ / shares $ 5.64
Number of units vested and not sold (in shares) 936,695