Consolidated Statements Of Operations - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Statement [Abstract]
Revenue	$ 187,565	$ 233,524
Cost of services	153,446	190,249
Gross profit	34,119	43,275
Operating and administrative expenses	39,978	47,047
Charges	0	49
Operating profit	(5,859)	(3,821)
Other income (expense), net	(413)	(149)
Income before income taxes	(6,272)	(3,970)
Income tax expense	565	847
Net income	(6,837)	(4,817)
Net income attributable to CDI	$ (6,837)	$ (4,817)
Earnings per common share:
Basic (per share)	$ (0.37)	$ (0.24)
Diluted (per share)	$ (0.37)	$ (0.24)