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Goodwill and Other Intangible Assets - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Goodwill [Line Items]
Cumulative goodwill impairment	$ 0
Goodwill	51,084,000	$ 51,084,000
Gross intangible assets	41,700,000	43,700,000
Amortization expense	$ 4,200,000	4,400,000	$ 3,900,000
Customer Relationships
Goodwill [Line Items]
Useful life	10 years
Housekeeping Segment
Goodwill [Line Items]
Goodwill	$ 42,400,000
Dietary Segment
Goodwill [Line Items]
Goodwill		$ 8,700,000