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|
Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.
No definition available.