Intangible Assets and Liabilities - Intangibles - Future Amortization (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Below-Market Rents
Future Amortization of Intangible Liabilities:
2022 (six months)	$ (5,116)
2023	(9,629)
2024	(8,908)
2025	(8,347)
2026	(6,594)
Thereafter	(18,733)
Finite-lived intangible liabilities, net	(57,327)	$ (63,223)
In-Place Leases
Future Amortization of Intangible Assets:
2022 (six months)	12,775
2023	23,101
2024	19,116
2025	15,387
2026	12,097
Thereafter	32,672
Finite-lived intangible assets, net	115,148	129,538
Below-Market Ground Lease
Future Amortization of Intangible Assets:
2022 (six months)	200
2023	400
2024	400
2025	400
2026	400
Thereafter	15,793
Finite-lived intangible assets, net	17,593	17,804
Above-Market Rents
Future Amortization of Intangible Assets:
2022 (six months)	2,144
2023	3,771
2024	3,009
2025	2,015
2026	1,592
Thereafter	4,604
Finite-lived intangible assets, net	$ 17,135	$ 19,537

Finite Lived Intangible Assets Amortization Expense After Year Four

No definition available.

Name:	cuz_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFour
Namespace Prefix:	cuz_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Finite Lived Intangible Liabilities Amortization Expense after Year Four

+ References

No definition available.

+ Details

Name:	cuz_FiniteLivedIntangibleLiabilitiesAmortizationExpenseAfterYearFour
Namespace Prefix:	cuz_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Finite Lived Intangible Liabilities Amortization Expense Remainder Of Fiscal Year

+ References

No definition available.

+ Details

Name:	cuz_FiniteLivedIntangibleLiabilitiesAmortizationExpenseRemainderOfFiscalYear
Namespace Prefix:	cuz_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Finite Lived Intangible Liabilities Amortization Expense Year Four

+ References

No definition available.

+ Details

Name:	cuz_FiniteLivedIntangibleLiabilitiesAmortizationExpenseYearFour
Namespace Prefix:	cuz_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Finite Lived Intangible Liabilities, Amortization Expense, Year One

+ References

No definition available.

+ Details

Name:	cuz_FiniteLivedIntangibleLiabilitiesAmortizationExpenseYearOne
Namespace Prefix:	cuz_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Finite Lived Intangible Liabilities Amortization Expense Year Three

+ References

No definition available.

+ Details

Name:	cuz_FiniteLivedIntangibleLiabilitiesAmortizationExpenseYearThree
Namespace Prefix:	cuz_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Finite Lived Intangible Liabilities Amortization Expense Year Two

+ References

No definition available.

+ Details

Name:	cuz_FiniteLivedIntangibleLiabilitiesAmortizationExpenseYearTwo
Namespace Prefix:	cuz_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Finite Lived Intangible Liabilities Net

+ References

No definition available.

+ Details

Name:	cuz_FiniteLivedIntangibleLiabilitiesNet
Namespace Prefix:	cuz_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Finite Lived Intangible Liabilities Net Amortization Fiscal Year Maturity Abstract

+ References

No definition available.

+ Details

Name:	cuz_FiniteLivedIntangibleLiabilitiesNetAmortizationFiscalYearMaturityAbstractAbstract
Namespace Prefix:	cuz_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

+ Details

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

- Definition

Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in remainder of current fiscal year.

+ References

No definition available.

+ Details

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

- Definition

Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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

- Definition

Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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

- Definition

Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

+ References

+ Details

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

- References

No definition available.

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsFutureAmortizationExpenseAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 926
-SubTopic 20
-Section 50
-Paragraph 5
-URI https://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI https://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

+ Details

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

- Details

Name:	cuz_FiniteLivedIntangibleLiabilitiesByMajorClassAxis=cuz_BelowMarketLeasesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_LeasesAcquiredInPlaceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=cuz_BelowMarketGroundLeasesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_AboveMarketLeasesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: