Note Business Combination - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Business Acquisition
Goodwill Purchase Accounting Adjustments	$ 4,707	$ 0
FDIC Assisted Partial Acquisition Of Doral Bank
Business Acquisition
Business Acquisition Name Of Acquired Entity	Doral Bank
Business Acquisition Date Of Acquisition Agreement1	Feb. 27, 2015
FDIC Assisted Partial Acquisition Of Doral Bank | Income Before Tax
Business Acquisition
Change		$ 628
FDIC Assisted Partial Acquisition Of Doral Bank | Fair value adjustment | Doral Bank Transaction MSR FV Retro Adjustment
Business Acquisition
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Assets Other	$ (2,100)
FDIC Assisted Partial Acquisition Of Doral Bank | Fair value adjustment | Doral Bank Transaction Deposits Premium FV Retro Adjustment
Business Acquisition
Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Assets	2,600
FDIC Assisted Partial Acquisition Of Doral Bank | Fair value adjustment | Doral Bank Transaction Other Liabilities FV Retro Adjustment
Business Acquisition
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Financial Liabilities	$ (500)