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Stock Incentive Plans - Analysis of Restricted Stock Units and Restricted Stock Issued (Detail) - Restricted Stock [Member]
3 Months Ended
Mar. 31, 2016
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Non-vested restricted stock, Beginning balance 15,200
Granted 487,498
Vested (15,200)
Non-vested restricted stock, Ending balance 487,498