INVESTMENTS Debt and Common Stock Securities (Details) (USD $)	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Fixed income securities in unrealized loss positions
Investment in low income housing tax credit partnership	$ 10,000,000
Other Investments	11,688,000
Total tax benefit on investments in housing tax credit partnership	100,000
Investment in FHLBC	1,800,000
Unrealized Loss	7,065,000	28,933,000
Other-than-temporary impairment (OTTI) losses recognized in net earnings or other comprehensive earnings	0
Debt securities
Fixed income securities in unrealized loss positions
Number of unrealized loss positions	290
Unrealized Loss	6,600,000
Unrealized losses as percentage of fixed income portfolio cost basis	0.40%
Number of securities in unrealized loss positions for 12 months or longer	74
Common stock security
Fixed income securities in unrealized loss positions
Number of unrealized loss positions	3
Number of securities in unrealized loss positions for 12 months or longer	0
Common stock security | Maximum
Fixed income securities in unrealized loss positions
Unrealized Loss	500,000
Investment In Low Income Housing Tax Credit Partnership Net Of Amortization Member
Fixed income securities in unrealized loss positions
Other Investments	$ 9,900,000