Consolidated Statements of Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Interest income:
Real estate secured loans	$ 43,289	$ 38,552
Consumer loans	13,439	10,547
Consumer loans	5,794	5,662
Securities available for sale and Federal Home Loan Bank Stock	6,301	7,082
Investment securities held to maturity	3,396	2,670
Deposits, Federal funds sold and other short-term investments	12	10
Total interest income	72,231	64,523
Interest expense:
Deposits	3,588	3,738
Borrowed funds	6,715	5,584
Total interest expense	10,303	9,322
Net interest income	61,928	55,201
Provision for loan losses	600	400
Net interest income after provision for loan losses	61,328	54,801
Non-interest income:
Fees	6,054	4,802
Wealth management income	2,558	2,053
Bank-owned life insurance	1,348	1,302
Net gain (loss) on securities transactions	2	(350)
Other income	341	309
Total non-interest income	10,303	8,116
Non-interest expense:
Compensation and employee benefits	24,201	21,393
Net occupancy expense	7,172	6,089
Data processing expense	3,027	2,797
FDIC insurance	1,218	1,136
Amortization of intangibles	927	283
Advertising and promotion expense	761	1,065
Other operating expenses	6,131	5,427
Total non-interest expense	43,437	38,190
Income before income tax expense	28,194	24,727
Income tax expense	8,392	7,698
Net income	$ 19,802	$ 17,029
Basic earnings per share (usd per share)	$ 0.32	$ 0.30
Weighted average basic shares outstanding (in shares)	62,673,887	57,369,039
Diluted earnings per share (usd per share)	$ 0.32	$ 0.30
Weighted average diluted shares outstanding (in shares)	62,840,951	57,528,419