Commitments and Contingencies - Additional Information (Details) - USD ($) $ in Millions |
3 Months Ended | |
---|---|---|
Mar. 31, 2016 |
Mar. 31, 2015 |
|
Loss Contingencies [Line Items] | ||
Rent expense | $ 0.9 | $ 0.8 |
Minimum [Member] | ||
Loss Contingencies [Line Items] | ||
Lease interest rate | 6.60% | |
Maximum [Member] | ||
Loss Contingencies [Line Items] | ||
Lease interest rate | 9.60% |