Debt Instrument, Number of Instruments

No definition available.

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- 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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
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-Section 50
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+ Details

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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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num: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.

+ References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Gross amount of debt extinguished.

+ References

No definition available.

+ Details

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

- 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(3)
-URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870

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+ Details

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

- Definition

The carrying amount, as of the date of the latest financial statement presented, of real estate owned but transferred to serve as collateral for the payment of the related debt obligation, primarily a secured borrowing or repurchase agreement, and for which the transferee is not permitted to sell or re-pledge them to an unrelated party.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 30
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Balance Type:	debit
Period Type:	instant

- Details

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- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_MortgagesMember
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- Details

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- Details

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- Details

Name:	srt_RealEstateAndAccumulatedDepreciationDescriptionOfPropertyAxis=cuz_MeridianMarkPlazaAtlantaMember
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- Details

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- Details

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Notes Payable (Mortgage Loan Information) (Details) $ in Thousands		12 Months Ended
	Feb. 03, 2020 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2019 USD ($) debt_instrument
Debt Instrument [Line Items]
Long-term debt		$ 1,067,362	$ 2,218,093
Outstanding amount		1,062,570	2,222,975
Term Loan
Debt Instrument [Line Items]
Long-term debt		250,000	$ 250,000
Interest rate			2.96%
Mortgage Debt
Debt Instrument [Line Items]
Outstanding amount			$ 716,600
Number of non-recourse mortgage loans \| debt_instrument			8
Assets pledged as security			$ 1,100,000
Mortgage Debt \| Terminus 100
Debt Instrument [Line Items]
Long-term debt		0	$ 118,146
Interest rate			5.25%
Mortgage Debt \| Terminus 200
Debt Instrument [Line Items]
Long-term debt		0	$ 76,079
Interest rate			3.79%
Mortgage Debt \| Meridian Mark Plaza
Debt Instrument [Line Items]
Long-term debt		23,524	$ 22,978
Interest rate			6.00%
Mortgage Debt \| The Pointe
Debt Instrument [Line Items]
Amount of debt paid		$ 22,200
Subsequent Event \| Mortgage Debt \| Meridian Mark Plaza
Debt Instrument [Line Items]
Amount of debt paid	$ 23,000