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

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.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-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

Name:	us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration