Represents the additional maturity term of the debt instruments.

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- Definition

Debt Instrument, Covenant, Maximum, Leverage Ratio

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Debt Instrument, Covenant, Minimum Liquidity Level

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No definition available.

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Debt Instrument, Fair Value Adjustment, Net

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No definition available.

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- Definition

Represents the number of assets encumbered.

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No definition available.

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- Definition

Unamortized debt issuance costs on term loans

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No definition available.

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- Definition

The gross amount of unsecured debt at the balance sheet date

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No definition available.

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- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of uncollateralized debt obligations (with maturities initially due after one year or beyond the operating cycle if longer).

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Debt (Senior Notes, Term Loans, and Revolver) (Details)	3 Months Ended			6 Months Ended
Debt (Senior Notes, Term Loans, and Revolver) (Details)	Jun. 30, 2020 USD ($) asset $ / shares	Mar. 31, 2020 $ / shares	Mar. 31, 2019 $ / shares	Jun. 30, 2020 USD ($) asset $ / shares	Jun. 30, 2019 $ / shares	Jun. 30, 2022	Dec. 31, 2019 USD ($)
Debt
Debt, net	$ 2,591,674,000			$ 2,591,674,000			$ 2,195,707,000
Unsecured Debt, Gross	1,575,000,000			1,575,000,000			1,175,000,000
Unamortized debt issuance costs on term loans	(6,502,000)			(6,502,000)			(6,207,000)
Debt Instrument, Covenant, Minimum Liquidity Level	$ 125,000,000.0			$ 125,000,000.0
Dividends \| $ / shares	$ 0.01	$ 0.01	$ 0.33	$ 0.01	$ 0.33
Leverage ratio	0.0700			0.0700		7.50
Secured Debt [Member]
Debt
Number of Assets Encumbered \| asset	19			19
Six Point Zero Zero Percent Due June 2025 [Member] \| Unsecured Debt [Member]
Debt
Debt Instrument, Interest Rate, Stated Percentage	6.00%			6.00%
Senior Unsecured Notes [Member]
Debt
Debt Instrument, Redemption Price, Percentage				103.00%
Senior Unsecured Notes [Member] \| Unsecured Debt [Member]
Debt
Debt Instrument, Fair Value Adjustment, Net	$ 23,200,000			$ 23,200,000			25,600,000
The Revolver \| Line of Credit
Debt
Maximum borrowing capacity	600,000,000.0			$ 600,000,000.0
Additional maturity term				1 year
Unsecured Debt	$ 400,000,000			$ 400,000,000			0
Interest Rate	3.76%			3.76%
Remaining borrowing capacity	$ 200,000,000.0			$ 200,000,000.0			600,000,000.0
$400 Million Term Loan Maturing 2023 \| Unsecured Debt [Member]
Debt
Maximum borrowing capacity	400,000,000.0			400,000,000.0
Unsecured Debt	$ 400,000,000			$ 400,000,000			400,000,000
Interest Rate	4.58%			4.58%
$225 Million Term Loan Maturing 2023 \| Unsecured Debt [Member]
Debt
Maximum borrowing capacity	$ 225,000,000.0			$ 225,000,000.0
Unsecured Debt	$ 225,000,000			$ 225,000,000			225,000,000
Interest Rate	4.58%			4.58%
$150 Million Term Loan Maturing 2022 \| Unsecured Debt [Member]
Debt
Maximum borrowing capacity	$ 150,000,000.0			$ 150,000,000.0
Unsecured Debt	$ 150,000,000			$ 150,000,000			150,000,000
Interest Rate	3.88%			3.88%
$400 Million Term Loan Maturing 2025 [Member] \| Unsecured Debt [Member]
Debt
Maximum borrowing capacity	$ 400,000,000.0			$ 400,000,000.0
Unsecured Debt	$ 400,000,000			$ 400,000,000			400,000,000
Interest Rate	3.77%			3.77%
Prepaid expenses and other assets
Debt
Deferred financing costs	$ 3,900,000			$ 3,900,000			3,400,000
Fair Value, Inputs, Level 3 [Member] \| Secured Debt [Member]
Debt
Secured Debt	525,054,000			525,054,000			526,430,000
Fair Value, Inputs, Level 3 [Member] \| Unsecured Debt [Member]
Debt
Unsecured Debt	$ 1,568,498,000			$ 1,568,498,000			$ 1,168,793,000
Minimum
Debt
Leverage ratio	7.00			7.00
Maximum
Debt
Leverage ratio	6.50			6.50