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v2.4.1.9

Supplemental Condensed Consolidating Guarantor and Non- Guarantor Financial Information - Additional Information (Detail) | Dec. 31, 2014
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Quarterly Financial Information [Line Items] |
Guarantors Subsidiary ownership percentage | 100.00%fcn_OwnershipPercentageOfGuarantorSubsidiary

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- Definition Ownership Percentage Of Guarantor Subsidiary + References No definition available. + Details
Name: | fcn_OwnershipPercentageOfGuarantorSubsidiary
Namespace Prefix: | fcn_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Details
Name: | fcn_QuarterlyFinancialInformationLineItems
Namespace Prefix: | fcn_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration