Goodwill and Other Intangible Assets	9 Months Ended
Sep. 30, 2021
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	4. Goodwill and Other Intangible Assets There were no changes in goodwill for the period from December 31, 2020 through September 30, 2021. Other unamortized intangible assets included in Real estate, investments and other assets on the accompanying condensed consolidated balance sheet consist of $571,000 for domain names as of September 30, 2021 and December 31, 2020.

The entire disclosure for goodwill and intangible assets.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-URI http://asc.fasb.org/topic&trid=2144416

Name:	us-gaap_GoodwillAndIntangibleAssetsDisclosureTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration