Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Details)

v3.7.0.1
Commitments and Contingencies - Additional Information (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Commitments and Contingencies Disclosure [Abstract]    
Operating leases expense $ 0.7 $ 0.7