Business and Summary of Significant Accounting Principles (Shareholders Equity Statements Immaterial Error Correction) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended		3 Months Ended	9 Months Ended		3 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2011 Scenario As Previously Reported [Member]	Sep. 30, 2011 Scenario As Previously Reported [Member]	Dec. 31, 2011 Scenario As Previously Reported [Member]	Sep. 30, 2011 Adjustment [Member]	Sep. 30, 2011 Adjustment [Member]	Dec. 31, 2011 Adjustment [Member]
Beginning balances, retained earnings			$ (112,781)	$ (63,390)		$ (61,983)	$ (111,259)		$ (1,407)	$ (1,522)
Net income	3,523	7,239	8,580	6,594	7,210	6,738		29	(144)
Ending balances, retained earnings	(116,063)	(95,998)	(116,063)	(95,998)	(94,447)	(94,447)	(111,259)	(1,551)	(1,551)	(1,522)
Beginning balances, total stockholder's equity			171,990	197,806		199,213	173,512		(1,407)	(1,522)
Ending balances, total stockholder's equity	$ 172,746	$ 169,400	$ 172,746	$ 169,400	$ 170,951	$ 170,951	$ 173,512	$ (1,551)	$ (1,551)	$ (1,522)