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Accounts receivable, net (Additional Information) (Details) - USD ($) $ in Millions | Jun. 30, 2022 | Dec. 31, 2021
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Accounts Receivable, after Allowance for Credit Loss [Abstract] |  |
Retainage provisions included in receivables | $ 5.2 | $ 11.6

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- Definition Retainage provisions included in receivables. + References No definition available. + Details
Name: | ftci_RetainageProvisionsIncludedInReceivables
Namespace Prefix: | ftci_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
Name: | us-gaap_AccountsReceivableNetAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration