COPT Defense Properties Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Debt, Net - Schedule of Debt (Details)

Debt, Net - Schedule of Debt (Details)	9 Months Ended
Debt, Net - Schedule of Debt (Details)	Sep. 30, 2022 USD ($) Extension	Dec. 31, 2021 USD ($)
Debt
Carrying Value	$ 2,269,834,000	$ 2,272,304,000
Mortgage and other secured debt
Debt
Carrying Value	118,501,000	120,627,000
Loans payable
Debt
Net deferred financing costs	$ 4,600,000	5,800,000
Line of Credit \| Revolving Credit Facility
Debt
Number of extensions \| Extension	2
Extension option period (in years)	6 months
Line of credit facility, extension fee percentage	0.075%
Fixed rate mortgage debt \| Mortgage and other secured debt
Debt
Carrying Value	$ 85,077,000	86,960,000
Weighted average interest rate (as a percent)	4.07%
Fixed rate mortgage debt \| Mortgage and other secured debt \| Minimum
Debt
Interest rate	3.82%
Fixed rate mortgage debt \| Mortgage and other secured debt \| Maximum
Debt
Interest rate	4.62%
Variable rate secured debt \| Mortgage and other secured debt
Debt
Carrying Value	$ 33,424,000	33,667,000
Variable rate secured debt \| Mortgage and other secured debt \| London Interbank Offered Rate (LIBOR)
Debt
Weighted average interest rate (as a percent)	4.08%
Variable rate secured debt \| Mortgage and other secured debt \| London Interbank Offered Rate (LIBOR) \| Interest rate swaps
Debt
Weighted average interest rate (as a percent)	2.45%
Variable rate secured debt \| Mortgage and other secured debt \| Minimum \| London Interbank Offered Rate (LIBOR)
Debt
Variable rate, spread	1.45%
Variable rate secured debt \| Mortgage and other secured debt \| Maximum \| London Interbank Offered Rate (LIBOR)
Debt
Variable rate, spread	1.55%
Revolving Credit Facility
Debt
Carrying Value	$ 273,000,000	76,000,000
Revolving Credit Facility \| London Interbank Offered Rate (LIBOR)
Debt
Weighted average interest rate (as a percent)	3.94%
Revolving Credit Facility \| Minimum \| London Interbank Offered Rate (LIBOR)
Debt
Variable rate, spread	0.775%
Revolving Credit Facility \| Maximum \| London Interbank Offered Rate (LIBOR)
Debt
Variable rate, spread	1.45%
Term Loan Facility
Debt
Carrying Value	$ 99,953,000	299,420,000
Repayments of long-term debt	$ 200,000,000
Term Loan Facility \| London Interbank Offered Rate (LIBOR)
Debt
Interest rate	3.81%
Term Loan Facility \| Minimum \| London Interbank Offered Rate (LIBOR)
Debt
Variable rate, spread	1.00%
Term Loan Facility \| Maximum \| London Interbank Offered Rate (LIBOR)
Debt
Variable rate, spread	1.65%
2.25%, $400,000 aggregate principal \| Unsecured Senior Notes
Debt
Interest rate	2.25%
Debt instrument, face amount	$ 400,000,000
Carrying Value	396,275,000	395,491,000
Unamortized discount included in carrying value	$ 3,000,000	3,600,000
Effective interest rate on debt	2.48%
2.00%, $400,000 aggregate principal \| Unsecured Senior Notes
Debt
Interest rate	2.00%
Debt instrument, face amount	$ 400,000,000
Carrying Value	396,869,000	396,512,000
Unamortized discount included in carrying value	$ 2,200,000	2,500,000
Effective interest rate on debt	2.09%
2.75%, $600,000 aggregate principal \| Unsecured Senior Notes
Debt
Interest rate	2.75%
Debt instrument, face amount	$ 600,000,000
Carrying Value	589,854,000	589,060,000
Unamortized discount included in carrying value	$ 8,800,000	9,500,000
Effective interest rate on debt	2.94%
2.90%, $400,000 aggregate principal \| Unsecured Senior Notes
Debt
Interest rate	2.90%
Debt instrument, face amount	$ 400,000,000
Carrying Value	394,745,000	394,441,000
Unamortized discount included in carrying value	$ 4,300,000	4,500,000
Effective interest rate on debt	3.01%
Unsecured note payable
Debt
Interest rate	0.00%
Carrying Value	$ 637,000	753,000
Unamortized discount included in carrying value	$ 74,000	$ 108,000