Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Interest income:
Loans receivable	$ 54,472	$ 43,093
Loans held for sale	14,106	10,900
Investment securities	3,709	2,363
Other	1,111	2,362
Total interest income	73,398	58,718
Interest expense:
Deposits	10,212	7,526
Other borrowings	1,606	1,488
FHLB advances	2,268	1,689
Subordinated debt	1,685	1,685
Total interest expense	15,771	12,388
Net interest income	57,627	46,330
Provision for loan losses	1,980	2,964
Net interest income after provision for loan losses	55,647	43,366
Non-interest income:
Mortgage warehouse transactional fees	2,548	2,273
Bank-owned life insurance	1,123	1,061
Gain on sale of loans	644	1,231
Deposit fees	255	179
Mortgage loans and banking income	165	151
Gain on sale of investment securities	26	0
Other	733	838
Total non-interest income	5,494	5,733
Non-interest expense:
Salaries and employee benefits	17,332	13,952
FDIC assessments, taxes, and regulatory fees	4,030	3,278
Professional services	2,657	1,913
Technology, communication and bank operations	2,643	2,531
Occupancy	2,325	2,101
Loan workout	418	269
Other real estate owned	287	884
Advertising and promotion	256	347
Other	3,957	2,190
Total non-interest expense	33,905	27,465
Income before income tax expense	27,236	21,634
Income tax expense	9,537	7,682
Net income	17,699	13,952
Preferred stock dividends	1,286	0
Net income available to common shareholders	$ 16,413	$ 13,952
Basic earnings per common share (usd per share)	$ 0.61	$ 0.52
Diluted earnings per common share (usd per share)	$ 0.57	$ 0.49