XML 50 R37.htm IDEA: XBRL DOCUMENT v3.22.4

Significant Accounting Policies - Rent Receivables (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Tenant Rent Receivables and Straight-line Rent Receivable
Period within which tenant rent receivables are expected to be collected	1 year
Straight-line rent receivable	$ 52.7	$ 49.0	$ 67.8

X

- Definition

Represents deferred rent receivables net including amounts for assets held for sale.

+ References

No definition available.

+ Details

Name:	fsp_DeferredRentReceivableNetIncludingAmountsForAssetsHeldForSale
Namespace Prefix:	fsp_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Represents the maximum period within which receivables are expected to be collected.

+ References

No definition available.

+ Details

Name:	fsp_TenantRentReceivablesCollectionPeriodMaximum
Namespace Prefix:	fsp_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_ReceivablesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration