Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012		Dec. 31, 2011
Income Statement [Abstract]
Revenue	$ 1,087,859		$ 1,104,958		$ 1,059,803
Cost of services	881,218		885,549		834,502
Gross profit	206,641		219,409		225,301
Operating and administrative expenses	180,009	[1],[2]	187,143		196,826
Restructuring and other related costs	5,716		0		8,100
Operating profit	20,916	[3],[4],[5]	32,266	[4],[5]	20,375	[4],[5]
Other income (expense), net	(268)		(251)		(245)
Income before income taxes	20,648		32,015		20,130
Income tax expense	7,700		12,582		5,130
Net income	12,948		19,433		15,000
Less: Income attributable to the noncontrolling interest	64		317		167
Net income attributable to CDI	$ 12,884		$ 19,116		$ 14,833
Basic (in dollars per share)	$ 0.66		$ 0.99		$ 0.77
Diluted (in dollars per share)	$ 0.65		$ 0.97		$ 0.77

[1] In 2013, the Company's GETS segment recorded a $1.8 million benefit to "Operating and administrative expenses" related to the reduction of an acquisition-related earnout liability (by quarter: first $0.3 million, second $0.4 million, third $0.5 million and fourth $0.6 million.)

[2] In the fourth quarter of 2013, the Company recorded a $3.3 million benefit to "Operating and administrative expenses" related to the settlement of legal claims pursued by the Company.

[3] In the fourth quarter of 2013, the Company recorded a $5.7 million charge to "Restructuring and other related costs" related to the 2013 Restructuring Plan.

[4] In 2013 and 2011, the Company recorded pre-tax charges of $5.7 million and $8.1 million, respectively, to "Restructuring and other related costs" related to the 2013 and 2011 Restructuring Plans. The following table summarizes the amount of restructuring and other related costs recognized by reporting segment for the indicated periods: Year ended December 31, 2013 2012 2011 GETS $2,132 $— $4,467PSS 2,394 — 2,622MRI 215 — 372Corporate 975 — 639Restructuring and other related costs $5,716 $— $8,100

[5] In 2011, the Company's PSS segment recorded a $9.7 million benefit to "Operating and administrative expenses" related to the successful legal appeal of the UK OFT matter.