Transactions (Restructuring Plan) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ (264)	$ 1,809	$ 2,191	$ 5,172
Selling, general and administrative expenses
Restructuring Cost and Reserve [Line Items]
Restructuring charges			1,112	3,549
Severance and related costs
Restructuring Cost and Reserve [Line Items]
Restructuring charges			2,315	1,306
Cost of revenues, excluding depreciation and amortization
Restructuring Cost and Reserve [Line Items]
Restructuring charges			$ 1,079	$ 317