Other Assets - Schedule of Other Assets (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Other Assets [Abstract]
Straight line rent receivable	$ 45.6	$ 42.2
Goodwill	23.9	23.9
Right of use asset, net	12.2	12.2
Deferred taxes, net	11.3	9.4
Leasing commissions, net of accumulated amortization of $12.7 and $11.1 at June 30, 2023 and December 31, 2022, respectively	10.8	9.4
Prepaid expenses	10.6	12.7
Other	12.9	13.7
Other Assets	219.9	216.1
Accumulated amortization, leasing commissions	12.7	11.1
Above Market Leases
Other Assets [Abstract]
Above-market leases, net of accumulated amortization of $52.6 and $53.0 at June 30, 2023 and December 31, 2022, respectively	3.2	3.9
Accumulated amortization, above-market leases	52.6	53.0
Furniture and Equipment
Other Assets [Abstract]
Furniture and equipment net of accumulated depreciation of $29.4 and $29.4 at June 30, 2023 and December 31, 2022, respectively	9.0	13.4
Accumulated amortization, office furniture and equipment	29.4	29.4
Interest rate caps and swaps
Other Assets [Abstract]
Hedge assets	58.5	41.0
Hedge assets
Other Assets [Abstract]
Hedge assets	$ 21.9	$ 34.3