Business Segments (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2016 USD ($) segments	Mar. 31, 2015 USD ($)
Segment Reporting [Abstract]
Number of operating segments | segments	2
Number of reportable segments | segments	2
Business segments, information about operations
Operating revenues	$ 110,723	$ 121,173
Operating income (loss)	(6,369)	3,015
Other, net	(172)	(407)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	(7,578)	2,813
Operating Segments | Customer Interaction
Business segments, information about operations
Operating revenues	99,563	109,315
Operating income (loss)	(7,909)	1,527
Operating Segments | Trillium Software
Business segments, information about operations
Operating revenues	11,160	11,858
Operating income (loss)	2,242	3,013
Corporate, Non-Segment
Business segments, information about operations
Operating income (loss)	(702)	(1,525)
Segment Reconciling Items
Business segments, information about operations
Interest expense, net	1,381	609
Other, net	(172)	(407)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest	$ (7,578)	$ 2,813