Restructuring and Reorganization Charges (Details Textual) (USD $) In Thousands, unless otherwise specified	3 Months Ended					12 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2013	Dec. 31, 2014 Employees	Dec. 31, 2013 Employees	Dec. 31, 2012 Employees	Dec. 31, 2011
Restructuring Cost And Reserve [Line Items]
Restructuring and reorganization charges recorded during the year	$ 4,900	$ 7,800	$ 1,200	$ 11,500	$ 900	$ 13,969	$ 12,405	$ 2,469
Reduced workforce						60	160	40
Loss on disposition of business operations						222	(3,017)
Adjustment for the loss on termination of pension plan							3,221
Cash payments						14,421	4,331	3,708
Restructuring and reorganization reserve	3,948			3,717		3,948	3,717	2,370	4,260
Current Liabilities
Restructuring Cost And Reserve [Line Items]
Restructuring and reorganization reserve	3,100					3,100
Print operation
Restructuring Cost And Reserve [Line Items]
Restructuring and reorganization charges recorded during the year							3,600
Involuntary Terminations
Restructuring Cost And Reserve [Line Items]
Restructuring and reorganization charges recorded during the year						5,600	5,600	1,000
Termination costs
Restructuring Cost And Reserve [Line Items]
Cash payments		8,000
Abandonment of Office Facility
Restructuring Cost And Reserve [Line Items]
Restructuring and reorganization charges recorded during the year						1,100		500
Ascade Management
Restructuring Cost And Reserve [Line Items]
Restructuring and reorganization charges recorded during the year								$ 600