Business Segments (Details) $ in Thousands	3 Months Ended									12 Months Ended
	Dec. 31, 2015 USD ($)	Sep. 30, 2015 USD ($)	Jun. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Sep. 30, 2014 USD ($)	Jun. 30, 2014 USD ($) segments	Mar. 31, 2014 USD ($)	Sep. 30, 2013 USD ($)	Dec. 31, 2015 USD ($) segments	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Segment Reporting [Abstract]
Number of operating segments | segments							2
Number of reportable segments | segments							2			2
Business segments, information about operations
Goodwill impairment										$ 209,938
Impairment of intangible assets									$ 2,800		$ 0	$ 2,750
Operating revenues	$ 129,815	$ 121,968	$ 122,345	$ 121,173	$ 146,518	$ 134,121	$ 140,310	$ 132,727		495,301	553,676	559,609
Operating income (loss)	6,792	(205,438)	$ 8,057	$ 3,015	14,656	$ 10,540	$ 10,987	$ 4,579		(187,575)	40,762	42,661
Interest expense, net										4,759	2,559	2,998
Loss on sale										9,501	0	0
Other, net										1,007	897	46
Total income (loss) from continuing operations before income taxes										(202,842)	37,306	39,617
Depreciation										13,586	14,894	15,530
Other intangible amortization										659	26	206
Capital Expenditure										11,574	11,265	15,873
Total assets	414,621				644,177					414,621	644,177
Customer Interaction
Business segments, information about operations
Goodwill impairment		$ 209,938								209,938
Other intangible amortization										656	26	206
Trillium Software
Business segments, information about operations
Goodwill impairment										0
Other intangible amortization										3	0	0
Operating Segments | Customer Interaction
Business segments, information about operations
Operating revenues										444,166	499,444	503,760
Operating income (loss)										(197,020)	29,780	32,021
Depreciation										11,717	12,859	13,477
Other intangible amortization										659	26	206
Capital Expenditure										7,777	9,341	14,092
Total assets	231,635				436,561					231,635	436,561
Operating Segments | Trillium Software
Business segments, information about operations
Operating revenues										51,135	54,232	55,849
Operating income (loss)										14,039	13,347	15,396
Depreciation										1,869	2,035	2,053
Capital Expenditure										3,644	1,912	1,781
Total assets	182,986				207,616					182,986	207,616
Corporate, Non-Segment
Business segments, information about operations
Operating income (loss)										(4,594)	(2,365)	(4,756)
Depreciation										0	0	0
Other intangible amortization										0	0	0
Capital Expenditure										153	12	0
Total assets	$ 0				$ 0					0	0
Segment Reconciling Items
Business segments, information about operations
Interest expense, net										4,759	2,559	2,998
Loss on sale										9,501	0	0
Other, net										$ 1,007	$ 897	$ 46