Goodwill And Other Intangible Assets (Narrative) (Details) (USD $)	12 Months Ended						3 Months Ended			12 Months Ended				3 Months Ended		12 Months Ended					3 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2012 Minimum [Member]	Dec. 31, 2012 Maximum [Member]	Dec. 31, 2012 Indiana Community Bancorp [Member]	Dec. 31, 2011 Integra Bank N.A [Member]	Mar. 31, 2011 Monroe Bancorp [Member]	Dec. 31, 2011 Insurance Book of Business [Member]	Dec. 31, 2012 Community Banking [Member]	Dec. 31, 2011 Community Banking [Member]	Dec. 31, 2012 Community Banking [Member] Indiana Community Bancorp [Member]	Sep. 30, 2012 Community Banking [Member] Indiana Community Bancorp [Member]	Sep. 30, 2011 Community Banking [Member] Integra Bank N.A [Member]	Mar. 31, 2011 Community Banking [Member] Monroe Bancorp [Member]	Dec. 31, 2012 Other Segment [Member]	Dec. 31, 2011 Other Segment [Member]	Dec. 31, 2012 Other Segment [Member] Indiana Community Bancorp [Member]	Sep. 30, 2012 Other Segment [Member] Indiana Community Bancorp [Member]	Jun. 30, 2011 Other Segment [Member] Integra Bank N.A [Member]	Mar. 31, 2011 Other Segment [Member] Monroe Bancorp [Member]	Jun. 30, 2012 Other Segment [Member] Insurance Book of Business [Member]	Jun. 30, 2011 Other Segment [Member] Insurance Book of Business [Member]
Goodwill [Line Items]
Goodwill acquired during the period	$ 85,643,000	$ 85,293,000				$ 85,600,000		$ 68,400,000		$ 84,643,000	$ 84,401,000	$ 84,600,000		$ 16,900,000	$ 67,500,000	$ 1,000,000	$ 892,000	$ 1,000,000			$ 900,000
Decrease in goodwill after discussions with FDIC	8,200,000
Estimated useful lives of core deposits and customer relationships				5 years	15 years
Core deposit intangibles													1,300,000	4,300,000	8,200,000
Customer relationship intangibles									300,000										1,700,000	1,300,000	2,300,000	500,000	(100,000)
Amortization expense of other intangible assets	$ 7,941,000	$ 8,829,000	$ 6,130,000				$ 700,000