Leases (Schedule Of Changes In Future Minimum Lease Obligations) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
Leases [Line Items]
Balance, Beginning of Period	$ 18,219		$ 20,160		$ 8,603
Charges Incurred	7,658	[1]	6,334	[1]	75,630	[1]
Net Cash Payments	10,732	[2]	27,653	[2]	26,185	[2]
Other	(1,467)	[3]	534	[3]	6,569	[3]
Balance, End of Period	12,955		18,219		20,160
Continuing Operations [Member]
Leases [Line Items]
Charges Incurred	1,291	[4]	4,557	[4]	15,837	[4]
Net Cash Payments	(6,847)		(6,414)		(4,505)
Other	$ 292	[5]	$ (84)	[5]	$ 225	[5]

[1] Includes charges for newly vacated spaces and subsequent adjustments for accretion, revised estimates, and variances between estimated and actual charges, net of any reversals for terminated lease obligations.

[2] See Note 9 "Leases" of the notes to our consolidated financial statements for the future minimum lease payments under operating leases for discontinued operations as of December 31, 2011.

[3] Includes existing prepaid rent and deferred rent liability balances for newly vacated spaces that are netted with the losses incurred in the period recorded.

[4] Includes charges for newly vacated spaces and subsequent adjustments for accretion, revised estimates and variances between estimated and actual charges, net of any reversals for terminated lease obligations.

[5] Includes existing deferred rent liability balances for newly vacated spaces that offset the losses incurred in the period recorded.