Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Schedule of Cash Deposits Subject to Credit Risk (Detail)

v3.3.1.900
Fair Value Measurements - Schedule of Cash Deposits Subject to Credit Risk (Detail) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Fair Value Disclosures [Abstract]        
Cash Deposits $ 42,645 $ 58,199 $ 31,846 $ 8,024
Restricted Cash Deposits (included in Other assets) 36,000 12,000    
Total Cash Deposits 79,000 70,000    
Amount of Cash Deposits in excess of amounts federally insured $ 75,000 $ 66,000