CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Cash Flows From Operating Activities:
Net income	$ 5,908	$ 5,719
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,515	1,091
Gains on sales of securities	(966)	0
Provision for loan losses	200	450
Stock-based compensation expense	351	350
Increase in income tax liability	1,770	1,868
Increase in pension liability	129	60
Other operating activities, net	903	(808)
Net cash provided by operating activities	9,810	8,730
Cash Flows From Investing Activities:
Proceeds from sales of securities available-for-sale	14,659	501
Proceeds from maturities of securities available-for-sale	2,950	5,385
Purchase of securities available-for-sale	(18,490)	(9,027)
Net increase in loans	(18,999)	(953)
Increase in payments in excess of funding	(4,247)	(7,931)
Purchases of premises and equipment, net	(168)	(465)
Acquisition of waste expense management service company's assets	(7,798)	0
Net cash used in investing activities	(32,093)	(12,490)
Cash Flows From Financing Activities:
Net (decrease) increase in noninterest-bearing demand deposits	(6,456)	13,282
Net decrease in interest-bearing demand and savings deposits	(14,130)	(8,170)
Net (decrease) increase in time deposits	(11,866)	1,946
Net decrease in accounts and drafts payable	(20,211)	(1,952)
Cash dividends paid	(1,765)	(1,505)
Distribution of stock awards, net	(135)	(113)
Net cash (used in) provided by financing activities	(54,563)	3,488
Net decrease in cash and cash equivalents	(76,846)	(272)
Cash and cash equivalents at beginning of period	235,962	138,929
Cash and cash equivalents at end of period	159,116	138,657
Supplemental information:
Cash paid for interest	842	1,186
Cash paid for income taxes	$ 293	$ 365