Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Additional Information (Detail)

v3.5.0.2
Commitments and Contingencies - Additional Information (Detail)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2016
USD ($)
lease
Jun. 30, 2015
USD ($)
Jun. 30, 2016
USD ($)
lease
Jun. 30, 2015
USD ($)
Commitments and Contingencies Disclosure [Abstract]        
Number of leases | lease 4   4  
Expenses incurred for the properties listed | $ $ 0.1 $ 0.1 $ 0.2 $ 0.2