Segment Information - Schedule of Information of Reportable Segments (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) segment	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment	2
Segment Reporting Information [Line Items]
Revenues	$ 1,760,303	$ 1,840,778	$ 2,002,601
Income before income taxes	129,186	85,096	99,910
Depreciation and amortization	14,268	13,940	9,272
Total assets	785,031	722,592	692,603
Capital expenditures	4,341	4,368	4,940
Genesis | Revenue from Contract with Customer Benchmark | Customer Concentration Risk
Segment Reporting Information [Line Items]
Revenues	$ 258,700	$ 287,800	$ 386,700
Concentration risk, percentage	14.70%	15.60%	19.30%
Corporate and eliminations
Segment Reporting Information [Line Items]
Income before income taxes	$ (34,830)	$ (52,346)	$ (66,556)
Depreciation and amortization	6,152	5,573	524
Total assets	395,665	221,421	166,303
Capital expenditures	238	1,112	254
Housekeeping
Segment Reporting Information [Line Items]
Revenues	895,300	909,500	967,600
Housekeeping | Operating Segments
Segment Reporting Information [Line Items]
Revenues	895,267	909,499	967,606
Income before income taxes	95,723	94,173	105,904
Depreciation and amortization	5,722	5,945	6,315
Total assets	214,500	265,096	291,117
Capital expenditures	3,710	3,188	3,996
Dietary
Segment Reporting Information [Line Items]
Revenues	865,000	931,300	1,035,000
Dietary | Operating Segments
Segment Reporting Information [Line Items]
Revenues	865,036	931,279	1,034,995
Income before income taxes	68,293	43,269	60,562
Depreciation and amortization	2,394	2,422	2,433
Total assets	174,866	236,075	235,183
Capital expenditures	$ 393	$ 68	$ 690