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Lease Disclosures Future minimum payments to be received as lessor under noncancelable operating leases (Details)
$ in Millions
Mar. 31, 2019
USD ($)
Leases [Abstract]  
2019 (remaining nine months) $ 79.5
2020 107.1
2021 101.2
2022 98.1
2023 93.7
Thereafter 288.3
Total minimum rents receivable $ 767.9