Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Interest income:
Real estate secured loans	$ 46,011	$ 44,233
Commercial loans	16,820	14,952
Consumer loans	5,014	5,636
Securities available for sale and Federal Home Loan Bank Stock	6,563	5,780
Investment securities held to maturity	3,248	3,331
Deposits, Federal funds sold and other short-term investments	257	42
Total interest income	77,913	73,974
Interest expense:
Deposits	4,452	3,821
Borrowed funds	6,426	7,084
Total interest expense	10,878	10,905
Net interest income	67,035	63,069
Provision for loan losses	1,500	1,500
Net interest income after provision for loan losses	65,535	61,569
Non-interest income:
Fees	6,005	6,461
Wealth management income	4,213	4,311
Bank-owned life insurance	1,389	1,332
Net gain on securities transactions	0	96
Other income	858	818
Total non-interest income	12,465	13,018
Non-interest expense:
Compensation and employee benefits	26,848	26,030
Net occupancy expense	6,955	6,434
Data processing expense	3,457	3,245
FDIC insurance	1,099	1,322
Amortization of intangibles	752	1,005
Advertising and promotion expense	857	879
Other operating expenses	6,156	5,963
Total non-interest expense	46,124	44,878
Income before income tax expense	31,876	29,709
Income tax expense	8,368	8,736
Net income	$ 23,508	$ 20,973
Basic earnings per share (usd per share)	$ 0.37	$ 0.33
Weighted average basic shares outstanding (in shares)	64,167,376	63,351,093
Diluted earnings per share (usd per share)	$ 0.37	$ 0.33
Weighted average diluted shares outstanding (in shares)	64,369,605	63,519,755