Restructuring (Schedule of Beginning and End Liability Balance and Expense by Type) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring Charges, Continuing and Discontinued Operations	$ 20,235
Long-term Purchase Commitment, Settlement Cost	8,500
Employee Severance
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0
Restructuring Charges, Continuing and Discontinued Operations	6,284	[1]
Restructuring and Related Cost, Expected Cost	0
Payments for Restructuring	(4,899)
Restructuring Reserve	1,385
Contract Termination Cost
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0
Restructuring Charges, Continuing and Discontinued Operations	5,138
Restructuring and Related Cost, Expected Cost	5,260	[2]
Payments for Restructuring	(5,407)
Restructuring Reserve	4,991
Other Restructuring
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0
Restructuring Charges, Continuing and Discontinued Operations	8,813
Restructuring and Related Cost, Expected Cost	0
Payments for Restructuring	(8,813)
Restructuring Reserve	$ 0

[1] Other includes an $8.5 million one-time payment to settle an outstanding purchase commitment.

[2] Deferred rent liabilities related to the early lease termination that were reclassified to present the outstanding liability related to the terminated leases.