Annual report pursuant to Section 13 and 15(d)

Income Taxes - Reconciliation of Total Amounts of Unrecognized Tax Benefits Excluding Interest and Penalties (Detail)

v3.7.0.1
Income Taxes - Reconciliation of Total Amounts of Unrecognized Tax Benefits Excluding Interest and Penalties (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Reconciliation of Unrecognized Tax Benefits      
Balance at Beginning of the Year $ 0 $ 181 $ 1,940
Decreases as a Result of Tax Positions Taken in Prior Years 0 (181) (1,901)
Increases as a Result of Tax Positions Taken in the Current Year 0 0 142
Balance at End of the Year $ 0 $ 0 $ 181