Revenue - Additional Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Revenue	$ 1,641,959	$ 1,760,303	$ 1,840,778
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 December 31, 2021, the Company had $212.6 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 46.1% 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 consists 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	$ 100	100
Transferred over time
Disaggregation of Revenue [Line Items]
Contract liabilities	2,500	2,300
Revenue recognized	$ 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	$ 821,300	895,300	909,500
Dietary
Disaggregation of Revenue [Line Items]
Revenue	$ 820,600	$ 865,000	$ 931,300