Acquisitions (Tables)	12 Months Ended
Dec. 31, 2021
Acquisitions [Abstract]
Schedule Of Business Acquisitions	HSW Oakland TotalGoodwill$ 56,191 $ 10,535 $ 66,726Reacquired franchise rights 52,980 6,190 59,170Property, plant, and equipment 5,998 675 6,673Working capital 3,760 22 3,782Customer relationships 2,220 500 2,720Non-compete agreements 140 100 240Other assets and liabilities - net 128 23 151 $ 121,417 $ 18,045 $ 139,462
Schedule Of Business Acquisitions Revenue And Net Income	HSW Oakland TotalService revenues and sales $ 20,141 $ 5,150 $ 25,291Net income/(loss) (2,777) 231 (2,546)
Schedule Of Franchise Revenue, Valuation And Amortization Of Reacquired Franchise Rights	Annualized Valuation Amortization of 2018 Franchise of Reacquired Reacquired Revenue Franchise Rights Franchise RightsHSW$ 1,782 $ 52,980 $ 7,258Oakland 95 6,190 825Subtotal 1,877 $ 59,170 $ 8,083All other franchise territories 4,505 $ 6,382

Tabular disclosure of a material business combination completed during the period, including background, timing, and recognized assets and liabilities. This table does not include leveraged buyouts.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1486-128463

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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