Discontinued Operations (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended		12 Months Ended	90 Months Ended
	Jun. 30, 2012	Mar. 31, 2012	Jun. 30, 2011	Mar. 31, 2011	Jun. 30, 2012 Agreement	Jun. 30, 2011	Dec. 31, 2007	Jun. 30, 2012
Discontinued Operations
Pretax earnings (loss) from results	$ (2,097)		$ (1,719)		$ (4,077)	$ 3,587
Gain on disposal, net of transaction bonus	0		0		10,203	11,056
Income tax (provision) benefit	799		682		(2,426)	(5,791)
Earnings (loss) on discontinued operations, net of tax	(1,298)		(1,037)		3,700	8,852
Discontinued Operations (Textual)
Cumulative cash receipts received under ECU earn-out							150,000
Payments received under 5CP earn-out		11,336		12,284
Total payments received under the 5CP earn-out								66,327
Excess cash received under 5CP earn-out								33,226
Number of earn-out agreements					2
Cash transaction bonus payable					1,134	1,228
Pretax earnings (loss) from results	(2,097)		(1,719)		(4,077)	3,587
Pretax gains from discontinued operations related to insurance settlements						$ 7,500