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Reconciliation of Unrecognized Tax Benefits (Detail)
$ in Thousands
12 Months Ended
Dec. 31, 2015
USD ($)
Reconciliation Of Unrecognized Tax Benefits Excluding Amounts Pertaining To Examined Tax Returns Roll Forward  
Gross Beginning Balance $ 2,214
Additions for tax positions of prior years 88
Expiration of statutes (40)
Gross Ending Balance 2,262
Net Ending Balance $ 2,262