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Subsequent Events (Details) $ / shares in Units, shares in Thousands, $ in Thousands				1 Months Ended	9 Months Ended
	Nov. 01, 2021 USD ($) extension	Oct. 12, 2021 $ / shares	Jan. 15, 2021	Nov. 04, 2021 shares	Sep. 30, 2021 USD ($)	Oct. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
Embedded debt derivative | Derivative liability
Subsequent Event [Line Items]
Future issuance of warrants, percentage of outstanding common stock			19.90%
Oaktree Capital Management, L.P. | Embedded debt derivative | Derivative liability | Subsequent Event
Subsequent Event [Line Items]
Future issuance of warrants, percentage of outstanding common stock		19.90%
Future issuance of warrants, price per share of common stock, excess price (in dollars per share) | $ / shares		$ 40
Future issuance of warrants, reduction of obligations, percentage of amount in excess		25.00%
Credit Agreement, Initial and Additional Delayed Draw Term Loan | Oaktree Capital Management, L.P. | Line of Credit
Subsequent Event [Line Items]
Commitment period (in months)			30 months
Credit Agreement, Initial and Additional Delayed Draw Term Loan | Oaktree Capital Management, L.P. | Line of Credit | Subsequent Event
Subsequent Event [Line Items]
Commitment period (in months)		42 months
Mortgage loan 1 | Mortgages
Subsequent Event [Line Items]
Debt balance					$ 78,614		$ 84,544
Basis spread on variable rate					6.26%
Mortgage loan 1 | Mortgages | Subsequent Event
Subsequent Event [Line Items]
Debt balance						$ 78,600
Mortgage loan 28 | Mortgages | Subsequent Event
Subsequent Event [Line Items]
Debt balance	$ 86,000
Long-term debt, term (in months and years)	3 years
Number of extension options | extension	2
Term of extension option (in years)	1 year
Mortgage loan 28 | Mortgages | LIBOR | Subsequent Event
Subsequent Event [Line Items]
Basis spread on variable rate	4.65%
Mortgage loan 28, Initial funding | Mortgages | Subsequent Event
Subsequent Event [Line Items]
Debt balance	$ 84,000
Mortgage loan 28, Additional funding | Mortgages | Subsequent Event
Subsequent Event [Line Items]
Debt balance	$ 2,000
Long-term debt, term (in months and years)	30 months
Common Stock | Subsequent Event
Subsequent Event [Line Items]
Common stock exchanged (in shares) | shares				875
Preferred Stock | Subsequent Event
Subsequent Event [Line Items]
Preferred stock extinguished (in shares) | shares				458
Preferred Stock, Series D
Subsequent Event [Line Items]
Preferred stock percentage					8.45%
Preferred Stock, Series D | Subsequent Event
Subsequent Event [Line Items]
Preferred stock percentage				8.45%
Preferred Stock, Series F
Subsequent Event [Line Items]
Preferred stock percentage					7.375%
Preferred Stock, Series F | Subsequent Event
Subsequent Event [Line Items]
Preferred stock percentage				7.375%
Preferred Stock, Series G
Subsequent Event [Line Items]
Preferred stock percentage					7.375%
Preferred Stock, Series G | Subsequent Event
Subsequent Event [Line Items]
Preferred stock percentage				7.375%
Preferred Stock, Series H
Subsequent Event [Line Items]
Preferred stock percentage					7.50%
Preferred Stock, Series H | Subsequent Event
Subsequent Event [Line Items]
Preferred stock percentage				7.50%
Preferred Stock, Series I
Subsequent Event [Line Items]
Preferred stock percentage					7.50%
Preferred Stock, Series I | Subsequent Event
Subsequent Event [Line Items]
Preferred stock percentage				7.50%

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