Annual report pursuant to Section 13 and 15(d)

Income Taxes - Reconciliation of Unrecognized Tax Benefits (Detail)

v3.6.0.2
Income Taxes - Reconciliation of Unrecognized Tax Benefits (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Income Tax Disclosure [Abstract]    
Beginning balance $ 6,143 $ 7,936
Additions for current year tax positions 1,069 888
Additions for prior year tax positions 138  
Reductions for prior year tax positions   (1,099)
Settlement of uncertain tax positions (616)  
Reductions related to lapse of statute of limitations (126) (1,582)
Ending balance $ 6,608 $ 6,143