Equity Compensation Class B OP Units (Details) - shares	9 Months Ended
Sep. 30, 2020	Sep. 30, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Class B Units Issued During Period (shares)	0	0
2018 Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Class B Units Issued During Period (shares)	256,087
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period (shares)	(190,779)
Partners' Capital Account, Units, Converted (shares)	0
Class B Units Outstanding (shares)	65,308
Class B Units Unearned And Vested (shares)	48,678
Class B Units Unearned And Unvested (shares)	16,630
2018 Award \| Former CEO - John A. Williams [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period (shares)	(38,284)
2018 Award \| Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period (shares)	(128,258)
2018 Award \| Other OP Unit Participants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period (shares)	(24,237)
2017 Award
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Class B Units Issued During Period (shares)	286,392
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period (shares)	(5,334)
Partners' Capital Account, Units, Converted (shares)	(281,058)
Class B Units Outstanding (shares)	0
Class B Units Unearned And Vested (shares)	0
Class B Units Unearned And Unvested (shares)	0
2017 Award \| Former CEO - John A. Williams [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period (shares)	0
2017 Award \| Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period (shares)	0
2017 Award \| Other OP Unit Participants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period (shares)	(5,334)

Class B Units Issued During Period

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Class B Units Outstanding

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Class B Units Unearned And Unvested

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Class B Units Unearned And Vested

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- Definition

The number of units converted into shares of each class of partners' capital account. Units represent shares of ownership of the general, limited, and preferred partners.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 5
-Subparagraph (SAB Topic 4.F)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187171-122770

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)(iv)(3)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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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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