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Retirement Plan (Details) - USD ($)
$ in Millions
9 Months Ended 12 Months Ended
Dec. 31, 2015
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Retirement Plan        
Percentage of employer match 100.00%      
Employer contribution to retirement plan   $ 0.4 $ 0.0 $ 0.0
Maximum        
Retirement Plan        
Percentage of employees' gross pay which employer contributes a matching contribution 3.00%