Prepaid and other current assets (Additional Information) (Details) $ in Millions	Mar. 31, 2024 USD ($)
Prepaid Expense and Other Assets, Current [Abstract]
Short-term Interest Bearing Loan & Customer dvance	$ 2.5

Short-term Interest Bearing Loan & Customer dvance

No definition available.

Name:	ftci_ShortTermInterestBearingLoanCustomerDvance
Namespace Prefix:	ftci_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant