Annual report pursuant to Section 13 and 15(d)

Leases - Schedule of Future Minimum Rental Payments Pursuant to Capital and Operating Leases (Parenthetical) (Detail)

v3.6.0.2
Leases - Schedule of Future Minimum Rental Payments Pursuant to Capital and Operating Leases (Parenthetical) (Detail)
Dec. 31, 2016
Minimum [Member]  
Capital Leases And Operating Leases [Line Items]  
Capital lease interest rate 3.10%
Maximum [Member]  
Capital Leases And Operating Leases [Line Items]  
Capital lease interest rate 10.50%