Restructuring Reserve Roll-Forward (Details) (Headcount Reductions and Vacating Leased Facilities, Fourth Quarter 2010 Restructuring Plan, USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Restructuring Reserve [Roll Forward]
Balance at Beginning of Period	$ 1,533,000		$ 7,967,000
Payments	(562,000)	(7,600,000)	(6,996,000)	(16,000,000)
Balance at End of Period	971,000		971,000
Production and Distribution Expenses, Selling and Support Expenses, General and Adminstrative Expenses
Restructuring Charges [Abstract]
Restructuring Charges		$ 8,700,000		$ 14,700,000