XML 22 R95.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Earnings per Share and Unit (Parenthetical) (Details) - shares shares in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2017
ATM Equity Offering Program [Member] |  |
Earnings Per Share Basic [Line Items] |  |
Anti-dilutive securities excludes from earnings per share amount | 1.9 | 1.3
ATM Equity Offering Program [Member] | Partnership Interest [Member] |  |
Earnings Per Share Basic [Line Items] |  |
Anti-dilutive securities excludes from earnings per share amount | 1.9 | 1.3
Forward Equity Offering [Member] |  |
Earnings Per Share Basic [Line Items] |  |
Anti-dilutive securities excludes from earnings per share amount | 1.9 | 1.3
Forward Equity Offering [Member] | Partnership Interest [Member] |  |
Earnings Per Share Basic [Line Items] |  |
Anti-dilutive securities excludes from earnings per share amount | 1.9 | 1.3

X
- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_EarningsPerShareBasicLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_PlanNameAxis=reg_EquityOfferingProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=srt_PartnershipInterestMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=reg_ForwardSaleAgreementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |