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Stock-Based Compensation - Additional Information (Detail) (USD $)
 6 Months Ended 0 Months Ended 3 Months Ended 6 Months Ended
Jun. 30, 2014
Incentive_Plan
Dec. 31, 2013
Dec. 20, 2013
Equity Incentive Plan [Member]
Jun. 30, 2014
Equity Incentive Plan [Member]
Dec. 20, 2013
Equity Incentive Plan [Member]
Jun. 30, 2014
Options [Member]
Jun. 30, 2014
Options [Member]
Jun. 30, 2014
Options [Member]
Maximum [Member]
Jun. 30, 2014
Restricted Stock [Member]
Maximum [Member]
Jun. 30, 2014
Restricted Stock [Member]
Minimum [Member]
Jun. 30, 2014
Restricted Stock Three [Member]
Jun. 30, 2014
Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                        
Shares authorized 225,000,000 225,000,000   10,015,497                
Annual increase in number of shares of common stock       4.00%                
Aggregate limit of shares issuable to incentive stock option awards       3,000,000                
Equity incentive plans 3                      
Initial grant of stock-based compensation in shares         6,000,000              
Increase in percentage of outstanding number of shares of common stock     4.00%                  
Total unrecognized compensation expense $ 3,713,000                      
Vesting period 3 years 1 month 6 days                      
Term of years             4 years 10 years 10 years      
Vesting period of grant date               3 years 3 years 1 year   3 years
Restricted stock units vest and convert into shares of our common stock 4 years                   4 years  
Percentage of vested grant yearly             25.00%          
Percentage of vested grant monthly             75.00%          
Unexercised vested option forfeiture             3 months          
Estimated fair value           $ 61,000            
Exercise price                       $ 20.00
Number of SARs, Granted                       0
Number of SARs, Exercised                       0
Number of SARs, Forfeited and expired                       0