Debt Instrument, Extension Term

No definition available.

Name:	cuz_DebtInstrumentExtensionTerm
Namespace Prefix:	cuz_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Debt Instrument, Weighted Average Maturity Period

+ References

No definition available.

+ Details

Name:	cuz_DebtInstrumentWeightedAverageMaturityPeriod
Namespace Prefix:	cuz_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

+ Details

Name:	us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

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+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

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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+ Details

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Period Type:	duration

- Definition

Amount, after accumulated amortization, of debt discount (premium).

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

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

+ References

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

Amount, after deduction of unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Notes Payable - Terms of Notes Payable (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2026	Feb. 28, 2026	Dec. 31, 2025
Debt Instrument [Line Items]
Notes payable, gross	$ 3,795,902		$ 3,357,127
Unamortized original issue discount	(6,817)		(3,246)
Unamortized loan costs	(16,903)		(13,066)
Total Notes Payable	$ 3,772,182		3,340,815
Weighted average maturity of notes payable	4 years 1 month 6 days
Unsecured Notes
Debt Instrument [Line Items]
Notes payable, gross	$ 3,356,500		2,916,000
Term Loan, Unsecured Due In August 2026 \| Unsecured Term Loan With Interest Rate Of 4.63%
Debt Instrument [Line Items]
Interest Rate	4.63%
Notes payable, gross	$ 100,000		250,000
Term Loan, Unsecured Due In September 2026 \| Unsecured Term Loan With Interest Rate Of 4.474%
Debt Instrument [Line Items]
Interest Rate	4.474%
Notes payable, gross	$ 400,000		400,000
Extension term	6 months
Debt amount	$ 200,000
Credit Facility
Debt Instrument [Line Items]
Interest Rate	4.405%
Notes payable, gross	$ 206,500		116,000
Senior Unsecured Debt
Debt Instrument [Line Items]
Notes payable, gross	1,900,000
Debt amount	$ 750,000
Senior Unsecured Debt \| Unsecured Senior Notes With Interest Rate Of 5.875%
Debt Instrument [Line Items]
Interest Rate	5.875%
Notes payable, gross	$ 500,000		500,000
Senior Unsecured Debt \| Unsecured Senior Notes With Interest Rate Of 5.250%
Debt Instrument [Line Items]
Interest Rate	5.25%
Notes payable, gross	$ 500,000		$ 500,000
Unamortized loan costs	(4,200)
Debt amount	$ 500,000
Senior Unsecured Debt \| Unsecured Senior Notes With Interest Rate Of 5.375%
Debt Instrument [Line Items]
Interest Rate	5.375%		5.375%
Notes payable, gross	$ 400,000		$ 400,000
Unamortized loan costs			(3,600)
Debt amount			400,000
Senior Unsecured Debt \| 10 Year Unsecured Senior Notes With Interest Rate Of 3.95%
Debt Instrument [Line Items]
Interest Rate	3.95%
Notes payable, gross	$ 275,000		275,000
Senior Unsecured Debt \| 9 Year Unsecured Senior Notes With Interest Rate Of 3.86%
Debt Instrument [Line Items]
Interest Rate	3.86%
Notes payable, gross	$ 250,000		250,000
Senior Unsecured Debt \| Senior Notes With Interest Rate Of 3.78%
Debt Instrument [Line Items]
Interest Rate	3.78%
Notes payable, gross	$ 125,000		125,000
Senior Unsecured Debt \| Senior Notes With Interest Rate Of 4.09%
Debt Instrument [Line Items]
Interest Rate	4.09%
Notes payable, gross	$ 100,000		100,000
Senior Unsecured Debt \| Unsecured Senior Notes With Interest Rate Of 4.875%
Debt Instrument [Line Items]
Interest Rate	4.875%	4.875%
Notes payable, gross	$ 500,000		0
Unamortized loan costs		$ (4,200)
Debt amount		$ 500,000
Mortgage Debt
Debt Instrument [Line Items]
Notes payable, gross	439,402		441,127
Total Notes Payable	$ 439,400
Mortgage Debt \| Terminus
Debt Instrument [Line Items]
Interest Rate	6.34%
Notes payable, gross	$ 221,000		221,000
Mortgage Debt \| Terminus 100
Debt Instrument [Line Items]
Notes payable, gross	123,000
Mortgage Debt \| Terminus 200
Debt Instrument [Line Items]
Notes payable, gross	$ 98,000
Mortgage Debt \| 201 North Tryon
Debt Instrument [Line Items]
Interest Rate	3.37%
Notes payable, gross	$ 117,939		118,928
Mortgage Debt \| Colorado Tower
Debt Instrument [Line Items]
Interest Rate	3.45%
Notes payable, gross	$ 100,463		$ 101,199
Unsecured Debt \| Unsecured Term Loan With Interest Rate Of 4.63%
Debt Instrument [Line Items]
Interest Rate	4.63%
Notes payable, gross	$ 100,000