Annual report pursuant to Section 13 and 15(d)

Valuation Allowance of Deferred Tax Assets (Detail)

v3.3.1.900
Valuation Allowance of Deferred Tax Assets (Detail) - Valuation Allowance of Deferred Tax Assets - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Valuation and Qualifying Accounts Disclosure [Line Items]      
Beginning Balance $ 52,873 $ 25,711 $ 13,326
Additions 437 28,612 14,162
Deductions (2,674) (1,450) (1,777)
Ending Balance $ 50,636 $ 52,873 $ 25,711