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Office Closing and Termination Costs - Exit Costs Included in Accrued Liabilities in Consolidated Balance Sheet (Detail)
$ in Thousands
3 Months Ended
Mar. 31, 2018
USD ($)
Exit costs included in accrued liabilities in consolidated balance sheet  
Beginning balance at December 31, 2017 $ 1,855
Accrued building rent (37)
Payments (252)
Ending balance at March 31, 2018 $ 1,566