Quarterly report pursuant to Section 13 or 15(d)

Equity Incentive Plan - Summary of Non-vested Shares (Detail)

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Equity Incentive Plan - Summary of Non-vested Shares (Detail) (Restricted Incentive [Member], USD $)
3 Months Ended
Jun. 30, 2013
Restricted Incentive [Member]
 
Schedule Of Nonvested Restricted Stock Units Activities [Line Items]  
Beginning Balance, Restricted Shares of Common Stock   
Granted, Restricted Shares of Common Stock 606,415
Vested, Restricted Shares of Common Stock   
Forfeited, Restricted Shares of Common Stock   
Ending Balance, Restricted Shares of Common Stock 606,415
Beginning Balance, Fair Value of Restricted Shares of Common Stock   
Granted, Fair Value of Restricted Shares of Common Stock 7,580,188
Vested, Fair Value of Restricted Shares of Common Stock   
Forfeited, Fair Value of Restricted Shares of Common Stock   
Ending Balance, Fair Value of Restricted Shares of Common Stock $ 7,580,188