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Description of Business and Significant Accounting Policies - Additional Information (Details) | 12 Months Ended
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Dec. 31, 2022 USD ($) financial_institution segment | Dec. 31, 2021 USD ($) financial_institution | Dec. 31, 2020 USD ($)
Schedule of Accounting Policies [Line Items] |  |  |
Renewal term | 1 year |  |
Number of reportable segments | segment | 2 |  |
Marketable securities | $ 95,200,000 | $ 114,396,000 |
Unrealized gains (losses) from marketable securities | $ (7,500,000) | (1,600,000) | $ 2,600,000
Payment terms | The Company’s payment terms with customers on promissory notes can vary based on several factors and the circumstances of each promissory note, however typically promissory notes mature over a 1 to 4 year period. Similar to accounts receivable, each reporting period the Company evaluates the collectability of outstanding notes receivable balances and records an allowance for doubtful accounts representing an estimate of future expected credit losses. |  |
Amortization period of inventories and supplies | 24 months |  |
Depreciation | $ 10,500,000 | 10,300,000 | 10,100,000
Advertising expense | 0 | 0 | 0
Impairment of long-lived assets | 0 | 0 | 0
Goodwill and intangible asset impairment | $ 0 | $ 0 | 0
Number of financial institutions holding cash and cash equivalents and marketable securities | financial_institution | 1 | 1 |
Revenues | $ 1,690,176,000 | $ 1,641,959,000 | $ 1,760,303,000
Genesis |  |  |
Schedule of Accounting Policies [Line Items] |  |  |
Accounts receivable | 36,200,000 |  |
Notes receivable | $ 20,400,000 |  |
Significant Customers | Consolidated revenues | Genesis |  |  |
Schedule of Accounting Policies [Line Items] |  |  |
Concentration risk, percentage | 10.00% | 10.80% | 14.70%
Revenues | $ 169,100,000 | $ 177,100,000 | $ 258,700,000
Vendor | Products and other items | Sysco |  |  |
Schedule of Accounting Policies [Line Items] |  |  |
Concentration risk, percentage | 50.00% |  |
Minimum |  |  |
Schedule of Accounting Policies [Line Items] |  |  |
Cancellation notice period | 30 days |  |
Initial period preceding cancellation notice | 60 days |  |
Minimum | Housekeeping and Dietary equipment |  |  |
Schedule of Accounting Policies [Line Items] |  |  |
Property plant and equipment, useful life | 3 years |  |
Minimum | Computer hardware and software |  |  |
Schedule of Accounting Policies [Line Items] |  |  |
Property plant and equipment, useful life | 3 years |  |
Minimum | Vehicles |  |  |
Schedule of Accounting Policies [Line Items] |  |  |
Property plant and equipment, useful life | 5 years |  |
Maximum |  |  |
Schedule of Accounting Policies [Line Items] |  |  |
Cancellation notice period | 90 days |  |
Initial period preceding cancellation notice | 120 days |  |
Maximum | Housekeeping and Dietary equipment |  |  |
Schedule of Accounting Policies [Line Items] |  |  |
Property plant and equipment, useful life | 5 years |  |
Maximum | Computer hardware and software |  |  |
Schedule of Accounting Policies [Line Items] |  |  |
Property plant and equipment, useful life | 5 years |  |
Maximum | Vehicles |  |  |
Schedule of Accounting Policies [Line Items] |  |  |
Property plant and equipment, useful life | 10 years |  |

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