Annual report pursuant to Section 13 and 15(d)

Commitment and Contingencies (Textual) (Detail)

v3.6.0.2
Commitment and Contingencies (Textual) (Detail) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Commitments and Contingencies Disclosure [Abstract]      
Rent expense $ 5.3 $ 4.4 $ 4.3
Purchase commitments for inventory, total $ 48.8