Annual report pursuant to Section 13 and 15(d)

Income Taxes - Reconciliation of Unrecognized Tax Benefits (Detail)

v3.3.1.900
Income Taxes - Reconciliation of Unrecognized Tax Benefits (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Income Tax Disclosure [Abstract]    
Beginning balance $ 7,936 $ 10,816
Additions for current year tax positions 888 773
Reductions for prior year tax positions (1,099) (2,227)
Reductions related to lapse of statute of limitations (1,582) (1,426)
Ending balance $ 6,143 $ 7,936