Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Interest income:
Real estate secured loans	$ 44,233	$ 43,289
Commercial loans	14,952	13,439
Consumer loans	5,636	5,794
Securities available for sale and Federal Home Loan Bank Stock	5,780	6,301
Investment securities held to maturity	3,331	3,396
Deposits, Federal funds sold and other short-term investments	42	12
Total interest income	73,974	72,231
Interest expense:
Deposits	3,821	3,588
Borrowed funds	7,084	6,715
Total interest expense	10,905	10,303
Net interest income	63,069	61,928
Provision for loan losses	1,500	600
Net interest income after provision for loan losses	61,569	61,328
Non-interest income:
Fees	6,461	6,054
Wealth management income	4,311	2,558
Bank-owned life insurance	1,332	1,348
Net gain on securities transactions	96	2
Other income	818	341
Total non-interest income	13,018	10,303
Non-interest expense:
Compensation and employee benefits	26,030	24,201
Net occupancy expense	6,434	7,172
Data processing expense	3,245	3,027
FDIC insurance	1,322	1,218
Amortization of intangibles	1,005	927
Advertising and promotion expense	879	761
Other operating expenses	5,963	6,131
Total non-interest expense	44,878	43,437
Income before income tax expense	29,709	28,194
Income tax expense	8,736	8,392
Net income	$ 20,973	$ 19,802
Basic earnings per share (usd per share)	$ 0.33	$ 0.32
Weighted average basic shares outstanding (in shares)	63,351,093	62,673,887
Diluted earnings per share (usd per share)	$ 0.33	$ 0.32
Weighted average diluted shares outstanding (in shares)	63,519,755	62,840,951