Goodwill And Intangible Assets, Net (Schedule Of Change In Carrying Values Of Goodwill Assets By Segment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2013
Goodwill [Line Items]
Balance as of the beginning of the period - Goodwill, net		$ 615,343	$ 619,932
Acquisitions		77,824
Impairment	(122,045)	(122,045)
Adjustments		(101)	(101)
Disposition			(7,350)
Foreign currency		842	(5,998)
Balance as of the end of the period - Goodwill, net	571,863	571,863	606,483
Disputes, Investigations & Economics [Member]
Goodwill [Line Items]
Balance as of the beginning of the period - Goodwill, net		354,221	357,091
Acquisitions		3,100
Impairment		(122,045)
Adjustments		(78)	(78)
Disposition			(7,350)
Foreign currency		852	(5,757)
Balance as of the end of the period - Goodwill, net	236,050	236,050	343,906
Financial, Risk & Compliance [Member]
Goodwill [Line Items]
Balance as of the beginning of the period - Goodwill, net		55,330	56,982
Adjustments		(17)	11
Foreign currency		(14)	(168)
Balance as of the end of the period - Goodwill, net	55,299	55,299	56,825
Healthcare [Member]
Goodwill [Line Items]
Balance as of the beginning of the period - Goodwill, net		129,191	129,231
Acquisitions		74,724
Adjustments		(6)	(34)
Balance as of the end of the period - Goodwill, net	203,909	203,909	129,197
Energy [Member]
Goodwill [Line Items]
Balance as of the beginning of the period - Goodwill, net		76,601	76,628
Foreign currency		4	(73)
Balance as of the end of the period - Goodwill, net	$ 76,605	$ 76,605	$ 76,555