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Fixed Assets - Narrative (Details) |  |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
May 31, 2023 USD ($) ft² | Mar. 31, 2023 USD ($) ft² | Mar. 31, 2023 USD ($) ft² | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($)
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Depreciation expense |  |  |  | $ 33,800,000 | $ 34,300,000 | $ 32,500,000
Net gains (losses) on sales of fixed assets |  |  |  | 5,879,000 | (86,000) | 17,000
Sale price received in cash |  |  |  | 29,876,000 | 3,000 | $ 27,000
Promissory Note |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Interest rate, stated percentage |  | 7.00% | 7.00% |  |  |
Promissory note, term (in years) |  |  | 4 years |  |  |
Clearwater, Florida Office Building |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Sale leaseback transaction, area of property leased back | ft² |  | 14,883 | 14,883 |  |  |
Sale leaseback transaction, percentage of property sold that has been leased back |  | 9.00% |  |  |  |
Sale leaseback transaction, lease term (in years) |  | 5 years |  |  |  |
Sale leaseback transaction, annual base rent |  | $ 400,000 |  |  |  |
Clearwater, Florida Office Building | Disposal Group, Held-for-sale, Not Discontinued Operations |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Property held for sale |  |  |  |  | 20,200,000 |
Net gains (losses) on sales of fixed assets |  |  | $ (1,800,000) |  | $ (800,000) |
Clearwater, Florida Office Building | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Sale price of fixed asset |  | 19,600,000 | 19,600,000 |  |  |
Promissory note received from sale of fixed asset |  |  | 9,800,000 |  |  |
Sale price received in cash |  |  | 8,500,000 |  |  |
Rancho Cucamonga, California Office Building |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Sale leaseback transaction, area of property leased back | ft² | 6,000 |  |  |  |  |
Sale leaseback transaction, percentage of property sold that has been leased back | 5.00% |  |  |  |  |
Sale leaseback transaction, lease term (in years) | 2 years |  |  |  |  |
Sale leaseback transaction, annual base rent | $ 200,000 |  |  |  |  |
Rancho Cucamonga, California Office Building | Disposal Group, Held-for-sale, Not Discontinued Operations |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Property held for sale |  | $ 13,600,000 | $ 13,600,000 |  |  |
Rancho Cucamonga, California Office Building | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Net gains (losses) on sales of fixed assets |  |  |  | 7,900,000 |  |
Sale price of fixed asset | $ 22,300,000 |  |  |  |  |
Sale price received in cash |  |  |  | 21,400,000 |  |
Brea, California Office Building | Disposal Group, Held-for-sale, Not Discontinued Operations |  |  |  |  |  |
Property, Plant and Equipment [Line Items] |  |  |  |  |  |
Property held for sale |  |  |  | $ 10,800,000 |  |

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