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

Credit Facilities (Summary of Distribution Limit Percent of Modified FFO) (Details) - New Credit Facilities	3 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020
Line of Credit Facility [Line Items]
Long-term debt, covenant requirements, distribution in excess of modified funds from operations, percent								95.00%
Subsequent Event
Line of Credit Facility [Line Items]
Long-term debt, covenant requirements, distribution in excess of modified funds from operations, percent	100.00%	100.00%	105.00%	105.00%	110.00%	110.00%	115.00%