Note Related party transactions (Financial Condition accounts outstanding with PRLP 2011 Holdings, LLC) (Detail) - PRLP 2011 Holding, LLC - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Related Party Transaction [Line Items]
Loans	$ 0	$ 980
Accounts receivables (Other assets)	0	10
Deposits	(3,347)	(18,808)
Total	$ (3,347)	$ (17,818)