COPT Defense Properties Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Debt, Net - Schedule of Debt (Details)

Debt, Net - Schedule of Debt (Details)	12 Months Ended
Debt, Net - Schedule of Debt (Details)	Dec. 31, 2023 USD ($)	Sep. 12, 2023 USD ($)	Dec. 31, 2022 USD ($)	Nov. 17, 2021 USD ($)	Aug. 11, 2021 USD ($)	Mar. 11, 2021 USD ($)	Dec. 31, 2020 USD ($)
Debt
Carrying Value	$ 2,416,287,000		$ 2,231,794,000
Revolving Credit Facility
Debt
Carrying Value	75,000,000		211,000,000
Term Loan Facility
Debt
Debt instrument, face amount							$ 400,000,000
Carrying Value	$ 124,291,000		123,948,000
Unsecured note payable
Debt
Interest rate	0.00%
Carrying Value	$ 430,000		597,000
Unamortized discounts and/or commissions included in carrying value	$ 32,000		65,000
Secured Overnight Financing Rate \| Revolving Credit Facility
Debt
Variable rate, additional spread	0.0010
Weighted average interest rate	6.49%
Secured Overnight Financing Rate \| Revolving Credit Facility \| Minimum
Debt
Variable rate, spread	0.725%
Secured Overnight Financing Rate \| Revolving Credit Facility \| Maximum
Debt
Variable rate, spread	1.40%
Secured Overnight Financing Rate \| Term Loan Facility
Debt
Interest rate	6.74%
Variable rate, additional spread	0.0010
Secured Overnight Financing Rate \| Term Loan Facility \| Minimum
Debt
Variable rate, spread	0.85%
Secured Overnight Financing Rate \| Term Loan Facility \| Maximum
Debt
Variable rate, spread	1.70%
Mortgage and other secured debt
Debt
Carrying Value	$ 99,208,000		117,751,000
Mortgage and other secured debt \| Fixed-rate mortgage debt
Debt
Carrying Value	$ 66,314,000		84,433,000
Weighted average interest rate	4.10%
Mortgage and other secured debt \| Fixed-rate mortgage debt \| Minimum
Debt
Interest rate	3.82%
Mortgage and other secured debt \| Fixed-rate mortgage debt \| Maximum
Debt
Interest rate	4.62%
Mortgage and other secured debt \| Variable-rate secured debt
Debt
Carrying Value	$ 32,894,000		33,318,000
Mortgage and other secured debt \| Secured Overnight Financing Rate \| Variable-rate secured debt
Debt
Variable rate, additional spread	0.0010
Weighted average interest rate	6.94%
Mortgage and other secured debt \| Secured Overnight Financing Rate \| Variable-rate secured debt \| Interest rate swaps
Debt
Weighted average interest rate	2.45%
Mortgage and other secured debt \| Secured Overnight Financing Rate \| Variable-rate secured debt \| Minimum
Debt
Variable rate, spread	1.45%
Mortgage and other secured debt \| Secured Overnight Financing Rate \| Variable-rate secured debt \| Maximum
Debt
Variable rate, spread	1.55%
Unsecured Senior Notes \| 2.25%, $400,000 aggregate principal
Debt
Interest rate	2.25%
Debt instrument, face amount	$ 400,000,000
Carrying Value	397,608,000		396,539,000
Unamortized discounts and/or commissions included in carrying value	$ 1,900,000		2,800,000
Effective interest rate on debt	2.48%
Unsecured Senior Notes \| 5.25%, $345,000 aggregate principal
Debt
Interest rate	5.25%	5.25%
Debt instrument, face amount	$ 345,000,000	$ 345,000,000
Carrying Value	335,802,000		0
Unamortized discounts and/or commissions included in carrying value	$ 8,100,000
Effective interest rate on debt	5.83%
Unsecured Senior Notes \| 2.00%, $400,000 aggregate principal
Debt
Interest rate	2.00%				2.00%
Debt instrument, face amount	$ 400,000,000				$ 400,000,000
Carrying Value	397,471,000		396,988,000
Unamortized discounts and/or commissions included in carrying value	$ 1,800,000		2,100,000
Effective interest rate on debt	2.09%
Unsecured Senior Notes \| 2.75%, $600,000 aggregate principal
Debt
Interest rate	2.75%					2.75%
Debt instrument, face amount	$ 600,000,000					$ 600,000,000
Carrying Value	591,212,000		590,123,000
Unamortized discounts and/or commissions included in carrying value	$ 7,600,000		8,500,000
Effective interest rate on debt	2.94%
Unsecured Senior Notes \| 2.90%, $400,000 aggregate principal
Debt
Interest rate	2.90%			2.90%
Debt instrument, face amount	$ 400,000,000			$ 400,000,000
Carrying Value	395,265,000		394,848,000
Unamortized discounts and/or commissions included in carrying value	$ 3,900,000		4,200,000
Effective interest rate on debt	3.01%
Loans Payable
Debt
Net deferred financing costs	$ 5,300,000		$ 5,400,000