Supplemental Condensed Consolidating Guarantor And Non-Guarantor Financial Information (Condensed Consolidating Balance Sheet) (Details) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010		Sep. 30, 2010		Dec. 31, 2009
Cash and cash equivalents	$ 128,230	$ 384,570	[1]	$ 331,182	[1]	$ 118,872	[1]
Restricted cash	10,231	10,518	[1]
Accounts receivable, net	469,036	326,077	[1]
Other current assets	70,006	69,817
Total current assets	677,503	790,982	[1]
Property and equipment, net	75,027	73,238	[1]
Goodwill	1,295,679	1,269,447	[1]
Other intangible assets, net	124,623	134,970	[1]
Other assets	153,687	136,851
Total assets	2,326,519	2,405,488	[1]
Other current liabilities	446,086	286,302
Total current liabilities	446,086	286,302	[1]
Long-term debt, net	645,488	785,563	[1]
Other liabilities	183,176	166,017
Total liabilities	1,274,750	1,237,882	[1]
Stockholders' equity	1,051,769	1,167,606	[1]
Total liabilities and stockholders' equity	2,326,519	2,405,488	[1]
FTI Consulting, Inc. [Member]
Cash and cash equivalents	57,930	292,738		258,042		60,720
Restricted cash	8,632	8,633
Accounts receivable, net	172,452	109,663
Intercompany receivables	133,156	51,702
Other current assets	26,413	28,374
Total current assets	398,583	491,110
Property and equipment, net	45,070	47,091
Goodwill	547,784	426,866
Other intangible assets, net	40,279	5,906
Investments in subsidiaries	1,492,271	1,618,032
Other assets	68,283	57,998
Total assets	2,592,270	2,647,003
Intercompany payables	529,628	488,860
Other current liabilities	275,148	132,765
Total current liabilities	804,776	621,625
Long-term debt, net	622,488	756,515
Other liabilities	113,237	101,257
Total liabilities	1,540,501	1,479,397
Stockholders' equity	1,051,769	1,167,606
Total liabilities and stockholders' equity	2,592,270	2,647,003
Guarantor Subsidiaries [Member]
Cash and cash equivalents	410	1,430		1,783		665
Accounts receivable, net	176,418	140,328
Intercompany receivables	509,991	495,306
Other current assets	14,782	15,533
Total current assets	701,601	652,597
Property and equipment, net	13,041	13,893
Goodwill	423,557	541,395
Other intangible assets, net	37,270	79,984
Investments in subsidiaries	524,135	512,070
Other assets	63,968	58,560
Total assets	1,763,572	1,858,499
Intercompany payables	97,857	70,622
Other current liabilities	106,377	103,983
Total current liabilities	204,234	174,605
Long-term debt, net	23,000	29,048
Other liabilities	44,107	39,813
Total liabilities	271,341	243,466
Stockholders' equity	1,492,231	1,615,033
Total liabilities and stockholders' equity	1,763,572	1,858,499
Non-Guarantor Subsidiaries [Member]
Cash and cash equivalents	69,890	90,402		71,357		57,487
Restricted cash	1,599	1,885
Accounts receivable, net	120,166	76,086
Intercompany receivables	66,338	96,160
Other current assets	28,811	25,910
Total current assets	286,804	290,443
Property and equipment, net	16,916	12,254
Goodwill	324,338	301,186
Other intangible assets, net	47,074	49,080
Other assets	21,436	20,293
Total assets	696,568	673,256
Intercompany payables	82,000	83,686
Other current liabilities	64,561	49,554
Total current liabilities	146,561	133,240
Other liabilities	25,832	24,947
Total liabilities	172,393	158,187
Stockholders' equity	524,175	515,069
Total liabilities and stockholders' equity	696,568	673,256
Eliminations [Member]
Intercompany receivables	(709,485)	(643,168)
Total current assets	(709,485)	(643,168)
Investments in subsidiaries	(2,016,406)	(2,130,102)
Total assets	(2,725,891)	(2,773,270)
Intercompany payables	(709,485)	(643,168)
Total current liabilities	(709,485)	(643,168)
Total liabilities	(709,485)	(643,168)
Stockholders' equity	(2,016,406)	(2,130,102)
Total liabilities and stockholders' equity	$ (2,725,891)	$ (2,773,270)

[1] As Revised (Note 2)