Debt - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended			3 Months Ended
	Apr. 30, 2020	Mar. 31, 2020	Feb. 29, 2020	Mar. 31, 2020	Dec. 31, 2019
Interest rate swap and caps
Mortgages and Line of Credit Facility [Line Items]
Derivative, notional amount		$ 300,000		$ 300,000	$ 237,600
Swap
Mortgages and Line of Credit Facility [Line Items]
Derivative, notional amount		$ 100,000		$ 100,000
Tranche A-1 Term Loan
Mortgages and Line of Credit Facility [Line Items]
Debt, Weighted Average Interest Rate		2.12%		2.12%
Tranche A-2 Term Loan
Mortgages and Line of Credit Facility [Line Items]
Debt, Weighted Average Interest Rate		1.34%		1.34%
Tranche A-2 Term Loan | Interest rate swap and caps
Mortgages and Line of Credit Facility [Line Items]
Derivative, notional amount		$ 200,000		$ 200,000	137,600
Mortgages Payable
Mortgages and Line of Credit Facility [Line Items]
Net carrying value of real estate collateralizing the mortgages payable		1,600,000		1,600,000	1,400,000
Principal amount		175,000		175,000
Repayments of Secured Debt				2,200
Debt outstanding		1,294,806		1,294,806	1,125,777
Mortgages Payable | Interest rate swap and caps
Mortgages and Line of Credit Facility [Line Items]
Derivative, notional amount		1,000,000		1,000,000	867,600
Mortgages Payable | Refinanced Mortgage Loan
Mortgages and Line of Credit Facility [Line Items]
Principal amount	$ 117,300	97,100		97,100
Credit Facility
Mortgages and Line of Credit Facility [Line Items]
Credit facility, maximum borrowing capacity		1,400,000		1,400,000
Credit Facility | Revolving Credit Facility
Mortgages and Line of Credit Facility [Line Items]
Credit facility, maximum borrowing capacity		1,000,000		1,000,000
Proceeds from line of credit	300,000	200,000
Repayments of line of credit			$ 200,000
Debt outstanding		200,000		200,000	$ 200,000
Credit Facility | Tranche A-1 Term Loan
Mortgages and Line of Credit Facility [Line Items]
Credit facility, maximum borrowing capacity		200,000		200,000
Proceeds from line of credit	$ 100,000			100,000
Credit Facility | Tranche A-2 Term Loan
Mortgages and Line of Credit Facility [Line Items]
Credit facility, maximum borrowing capacity		$ 200,000		$ 200,000