Real Estate (Real Estate Available and Held for Sale) (Details) $ in Millions	Dec. 31, 2021 USD ($)
Operating Properties
Real Estate Properties [Line Items]
Real estate asset held for sale	$ 96.8

Amount of investment in land and building held for sale. Excludes real estate considered inventory.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(1)(d))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

Name:	us-gaap_RealEstateHeldforsale
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant