Discontinued Operations - Operating Results of Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Discontinued Operations
Total loss from discontinued operations, net of income taxes	$ (24)	$ (200)	$ (16)	$ (42)	$ (315)	$ (47)	$ (288)	$ (142)	$ (282)	$ (792)	$ (6,924)
Russia, Federal division and IT Outsourcing Practice
Discontinued Operations
Total revenues									0	0	5,424
Operating expenses									282	792	11,177
Operating loss from discontinued operations									(282)	(792)	(5,753)
Interest and other expense									0	0	1,008
Loss from discontinued operations before income taxes									(282)	(792)	(6,761)
Income tax expense									0	0	211
Loss from discontinued operations, net of taxes									(282)	(792)	(6,972)
Gain on sale									0	0	48
Income tax benefit									0	0	0
Gain on sale, net of income taxes									0	0	48
Total loss from discontinued operations, net of income taxes									$ (282)	$ (792)	$ (6,924)