Condensed Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Interest income:
Interest and fees on loans	$ 561,083	$ 543,842
Interest on investment securities available for sale	46,197	48,208
Interest on investment securities held to maturity	6,795	6,702
Interest on federal funds sold, securities purchased under agreements to resell and interest bearing deposits	4,365	996
Interest on trading account assets	14,321	9,614
Total interest income	632,761	609,362
Interest expense:
Interest on deposits	77,815	69,653
Interest on FHLB and other borrowings	18,012	19,106
Interest on federal funds purchased and securities sold under agreements to repurchase	6,157	1,326
Interest on other short-term borrowings	13,896	10,248
Total interest expense	115,880	100,333
Net interest income	516,881	509,029
Provision for loan losses	113,245	42,031
Net interest income after provision for loan losses	403,636	466,998
Noninterest income:
Service charges on deposit accounts	51,492	53,284
Card and merchant processing fees	29,742	26,183
Retail investment sales	22,567	25,146
Investment banking and advisory fees	23,604	30,334
Asset management fees	8,805	8,096
Corporate and correspondent investment sales	4,413	6,259
Mortgage banking	(3,434)	8,159
Bank owned life insurance	4,416	4,788
Investment securities gains, net	8,353	32,832
Loss on prepayment of FHLB and other borrowings, net	0	(2,549)
Other	76,621	56,738
Total noninterest income	226,579	249,270
Noninterest expense:
Salaries, benefits and commissions	278,035	259,262
Equipment	60,136	58,141
Professional services	55,694	46,559
Net occupancy	39,120	39,280
FDIC indemnification expense	4,710	28,789
Amortization of intangibles	4,093	10,687
Securities impairment:
Other-than-temporary impairment	0	372
Less: non-credit portion recognized in other comprehensive income	0	87
Securities impairment	0	285
Other	131,331	79,716
Total noninterest expense	573,119	522,719
Net income before income tax expense	57,096	193,549
Income tax expense	22,618	51,782
Net income	34,478	141,767
Less: net income attributable to noncontrolling interests	528	657
Net income attributable to BBVA Compass Bancshares, Inc.	33,950	141,110
Less: preferred stock dividends	3,219	0
Net income attributable to common shareholder	$ 30,731	$ 141,110