Restructuring Activities (Details 1) (USD $) In Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2011	Dec. 31, 2010
Restructuring liability balance
Beginning Balance	$ 53,421	$ 12,976
Cash paid	(39,608)	(50,353)
Ending Balance	18,956	53,421
Continuing operations [Member]
Restructuring liability balance
Net accruals	5,155	85,236
Continuing operations [Member] | Severance Costs [Member]
Restructuring liability balance
Net accruals	2,638	80,536
Continuing operations [Member] | Lease and Other Contract Termination Costs [Member]
Restructuring liability balance
Net accruals		1,430
Continuing operations [Member] | Exit and Other Costs [Member]
Restructuring liability balance
Net accruals	2,517	3,270
Discontinued operations [Member]
Restructuring liability balance
Net accruals	(12)	5,562
Discontinued operations [Member] | Severance Costs [Member]
Restructuring liability balance
Net accruals	(18)	3,108
Discontinued operations [Member] | Lease and Other Contract Termination Costs [Member]
Restructuring liability balance
Net accruals		2,384
Discontinued operations [Member] | Exit and Other Costs [Member]
Restructuring liability balance
Net accruals	6	70
Severance Costs [Member]
Restructuring liability balance
Beginning Balance	47,604	9,195
Cash paid	(34,534)	(45,235)
Ending Balance	15,690	47,604
Lease and Other Contract Termination Costs [Member]
Restructuring liability balance
Beginning Balance	4,155	3,781
Cash paid	(889)	(3,440)
Ending Balance	3,266	4,155
Exit and Other Costs [Member]
Restructuring liability balance
Beginning Balance	1,662	0
Cash paid	(4,185)	(1,678)
Ending Balance	$ 0	$ 1,662