Commitments and Contingencies - Schedule of Contractual Obligation (Details) $ in Thousands	Dec. 31, 2020 USD ($)
Other Commitments [Line Items]
Commitments	$ 317,012
Commitments related to assets classified as discontinued operations	4,000
Construction Loan Commitments
Other Commitments [Line Items]
Commitments	11,137
Lease and other contractual commitments
Other Commitments [Line Items]
Commitments	109,126
Development Commitments
Other Commitments [Line Items]
Commitments	196,749
Allowance for Tenant Improvement
Other Commitments [Line Items]
Commitments	$ 28,000