Subsequent Events	3 Months Ended
Mar. 31, 2021
Subsequent Events
Subsequent Events	17. Subsequent Events On April 15, 2021, we distributed a notice of redemption to all holders of record of our outstanding 6.625% series C cumulative redeemable perpetual preferred stock, or the series C preferred stock, for a redemption price of $25.211632 per share. The redemption price is equal to the original issuance price of $25.00 per share, plus accrued and unpaid dividends up to but not including the redemption date of $0.211632 per share. The redemption date is May 17, 2021.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6842918&loc=SL6314017-165662

Name:	us-gaap_SubsequentEventsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration