Earnings Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Net Income (Loss) Attributable to Parent [Abstract]
Net income from continuing operations	$ 4,066	$ 1,449
Net income (loss) attributable to noncontrolling interests	5	(146)
Net income attributable to Ciber, Inc. from continuing operations	4,061	1,595
Income (loss) from discontinued operations, net of income tax	(142)	18
NET INCOME ATTRIBUTABLE TO CIBER, INC.	$ 3,919	$ 1,613
Weighted Average Number of Shares Outstanding, Diluted [Abstract]
Basic weighted average shares outstanding (in shares)	76,452	74,072
Dilutive effect of employee stock plans (in shares)	1,020	537
Diluted weighted average shares outstanding (in shares)	77,472	74,609
Continuing operations (in dollars per share)	$ 0.05	$ 0.02
Discontinued operations (in dollars per share)	$ 0.00	$ 0.00
Basic and diluted earnings per share attributable to Ciber, Inc. (in dollars per share)	$ 0.05	$ 0.02
Anti-dilutive securities omitted from the calculation (in shares)	2,468	5,610