Supplemental Disclosure for Statement of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Supplemental disclosures of cash flow information:
Interest paid	$ 103,006	$ 108,970
Net income taxes paid	1,153	2,658
Supplemental schedule of noncash investing and financing activities:
Transfer of loans and loans held for sale to OREO	10,226	6,651
Transfer of loans to loans held for sale	0	764,022
Issuance of restricted stock, net of cancellations	$ 0	$ (66)