Escrow Deposits, Prepaid Expenses and Other Assets - Summary (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2020 USD ($) bulkDisposition	Mar. 31, 2019 USD ($)	Jan. 01, 2020 USD ($)	Dec. 31, 2019 USD ($)
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Escrow deposits, prepaid expenses and other	$ 66,641			$ 54,545
Deferred costs and other intangibles, net	6,180			6,840
Notes receivable, net	35,326			36,834
Commercial real estate, software, vehicles and FF&E, net	43,179			42,742
Total	151,326			$ 140,961
Schedule of Equity Method Investments [Line Items]
Depreciation expense	79,800	$ 76,800
Amortization expense related to deferred leasing costs, in-place leases, trademark and database	1,000	2,500
Amortization of deferred financing costs	$ 500	500
Allowance for credit losses			$ 1,500
Number Of Bulk Dispositions | bulkDisposition	2
Commercial Real Estate, Vehicles, and Furniture, Fixtures, and Equipment
Schedule of Equity Method Investments [Line Items]
Depreciation expense	$ 2,000	$ 1,900