Annual report pursuant to Section 13 and 15(d)

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

v3.6.0.2
Fair Value Measurements - Schedule of Cash Deposits Subject to Credit Risk (Detail) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Fair Value Disclosures [Abstract]    
Cash Deposits $ 29,428 $ 42,645
Restricted Cash Deposits (included in Other assets) 30,000 36,000
Total Cash Deposits 59,000 79,000
Amount of Cash Deposits in excess of amounts federally insured $ 57,000 $ 75,000