Consolidated Statements Of Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Interest income:
Loans	$ 81,187	$ 79,841
MBS	7,297	15,335
Investments and cash equivalents	2,273	2,789
Total interest income	90,757	97,965
Interest expense:
Deposits	6,307	11,102
Short-term borrowings	446	2,206
Long-term borrowings	7,110	10,304
Total interest expense	13,863	23,612
Net interest income	76,894	74,353
Provision for credit losses	0	4,000
Net interest income after provision for credit losses	76,894	70,353
Noninterest income:
Fees and service charges	14,130	12,740
Mortgage banking operations	13,794	18,544
BOLI	1,557	1,746
Gains on sales of securities, net	0	142
Gains on other loan sales	25	600
Other	8,060	(2,185)
Total noninterest income	37,566	31,587
Noninterest expense	81,929	88,649
Income before income taxes	32,531	13,291
Income tax (provision) benefit	(9,853)	0
Net Income	$ 22,678	$ 13,291
Earnings per share - basic (in dollars per share)	$ 0.36	$ 0.21
Earnings per share - diluted (in dollars per share)	$ 0.36	$ 0.21
Dividends declared per share	$ 0.00	$ 0.00
Weighted average shares outstanding - basic (in shares)	62,242,183	62,078,404
Weighted average shares outstanding - diluted (in shares)	63,004,784	62,682,987