Independent Contractor Operations (Narrative) (Details) $ in Millions	3 Months Ended
	Mar. 31, 2016 USD ($) item	Dec. 31, 2015 USD ($)
Independent Contractor Operations [Line Items]
Notes receivable from independent contractors | $	$ 1.7	$ 1.8
Roto-Rooter segment [Member]
Independent Contractor Operations [Line Items]
Independent contractors with sublicenses | item	69
Maximum [Member]
Independent Contractor Operations [Line Items]
Interest rates on loans	7.00%
Terms of the loans to independent contractors, years	5 years 4 months 24 days
Minimum [Member]
Independent Contractor Operations [Line Items]
Interest rates on loans	0.00%
Terms of the loans to independent contractors, years	2 months 15 days