Summary Of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2021
Summary Of Significant Accounting Policies [Abstract]
Schedule Of Other Operating Income	Lost revenue$ 44,784 Incremental PTO 21,425 Hard costs 14,016 Other operating income$ 80,225
Schedule Of Weighted Average Lives Of Property And Equipment	Buildings and building improvements14.8 yrs. Transportation equipment 9.3 Machinery and equipment 5.1 Computer software 3.8 Furniture and fixtures 4.5
Schedule Of Movement In Goodwill	Roto- Vitas Rooter TotalBalance at December 31, 2019 $ 333,331 $ 244,036 $ 577,367Business combinations - 1,193 1,193Foreign currency adjustments - 25 25Balance at December 31, 2020 $ 333,331 $ 245,254 $ 578,585Foreign currency adjustments - 6 6Balance at December 31, 2021 $ 333,331 $ 245,260 $ 578,591
Weighted Average Lives Of Identifiable, Definite-Lived Intangible Assets	Covenants not to compete 6.5 yrs. Reacquired franchise rights7.4 Referral networks 10.0 Customer lists 16.8