Revenue - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Revenue	$ 398,171	$ 452,029	$ 805,922	$ 901,179
Renewal term			1 year
Description of timing			The Company’s contracts with customers typically provide for an initial term of one year, with renewable one year service terms, cancellable by either party upon 30 to 90 days’ notice after an initial period of 60 to 120 days.At June 30, 2021, the Company had $327.8 million related to performance obligations that were unsatisfied or partially unsatisfied for which the Company expects to recognize revenue. The Company expects to recognize revenue on approximately 37.5% of the remaining performance obligations over the next 12 months, with the balance to be recognized thereafter. These amounts exclude variable consideration primarily related to performance obligations that consist of a series of distinct service periods with revenues based on future performance that cannot be estimated at contract inception. The Company also has elected to apply the practical expedient that permits exclusion of information about the remaining performance obligations with original expected durations of one year or less.
Transferred at point in time
Disaggregation of Revenue [Line Items]
Contract liabilities (less than for June 30, 2021)	600		$ 600		$ 100
Transferred over time
Disaggregation of Revenue [Line Items]
Contract liabilities (less than for June 30, 2021)	100		$ 100		$ 2,300
Minimum
Disaggregation of Revenue [Line Items]
Cancellation notice period			30 days
Initial period preceding cancellation notice			60 days
Maximum
Disaggregation of Revenue [Line Items]
Cancellation notice period			90 days
Initial period preceding cancellation notice			120 days
Housekeeping
Disaggregation of Revenue [Line Items]
Revenue	202,841	227,650	$ 417,899	$ 451,943
Percent of revenue			51.90%	50.20%
Dietary
Disaggregation of Revenue [Line Items]
Revenue	$ 195,330	$ 224,379	$ 388,023	$ 449,236
Percent of revenue			48.10%	49.80%