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GOODWILL AND INTANGIBLE ASSETS (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 25, 2022 | Dec. 26, 2021 | Dec. 27, 2020 | Mar. 29, 2020
Goodwill [Roll Forward] |  |  |  |
Goodwill before impairment | $ 330,106 | $ 330,441 |  |
Accumulated impairment charge | (235,568) | (235,568) |  |
Goodwill, net | 94,538 | 94,873 |  |
Foreign currency translation | (754) | (335) |  |
Goodwill before impairment | 329,352 | 330,106 | $ 330,441 |
Accumulated impairment charge | (235,568) | (235,568) | (235,568) |
Goodwill, net | 93,784 | 94,538 | 94,873 |
Finite-Lived Intangible Assets, Net [Abstract] |  |  |  |
Gross carrying amount | 95,703 | 104,082 |  |
Accumulated amortization | (85,498) | (87,871) |  |
Total future amortization | 10,205 | 16,211 |  |
Amortization of intangible assets | 5,700 | 6,700 | 10,100 |
Estimated future amortization of finite-lived intangible assets [Abstract] |  |  |  |
2023 | 5,079 |  |  |
2024 | 4,105 |  |  |
2025 | 293 |  |  |
2026 | 112 |  |  |
2027 | 112 |  |  |
Thereafter | 504 |  |  |
Total future amortization | 10,205 | 16,211 |  |
Indefinite-lived trade name/trademarks | 6,000 | 6,000 |  |
Goodwill, impairment charge |  |  | (140,500) |
Goodwill | $ 93,784 | 94,538 | 94,873 |
Impairment of finite-lived intangible assets |  |  | $ 34,700 |
Impairment, Intangible Asset, Finite-Lived, Statement of Income or Comprehensive Income [Extensible Enumeration] | Goodwill and intangible asset impairment charge |  |  |
Finite-Lived Intangible Assets, Net | $ 10,205 | 16,211 |  |
Fair value inputs, discount rate, goodwill |  |  | 12.00% |
Minimum |  |  |  |
Estimated future amortization of finite-lived intangible assets [Abstract] |  |  |  |
Weighted Average Cost of Capital |  |  | 11.50% |
Maximum |  |  |  |
Estimated future amortization of finite-lived intangible assets [Abstract] |  |  |  |
Weighted Average Cost of Capital |  |  | 12.00% |
Customer relationships |  |  |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |  |  |
Gross carrying amount | 94,134 | 102,016 |  |
Accumulated amortization | (84,994) | (87,134) |  |
Total future amortization | 9,140 | 14,882 |  |
Estimated future amortization of finite-lived intangible assets [Abstract] |  |  |  |
Total future amortization | 9,140 | 14,882 |  |
Finite-Lived Intangible Assets, Net | 9,140 | 14,882 |  |
Trade names/trademarks |  |  |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |  |  |
Gross carrying amount | 1,569 | 2,066 |  |
Accumulated amortization | (504) | (737) |  |
Total future amortization | 1,065 | 1,329 |  |
Estimated future amortization of finite-lived intangible assets [Abstract] |  |  |  |
Total future amortization | 1,065 | 1,329 |  |
Finite-Lived Intangible Assets, Net | 1,065 | 1,329 |  |
PeopleReady |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill before impairment | 106,304 | 106,304 |  |
Accumulated impairment charge | (46,210) | (46,210) |  |
Goodwill, net | 60,094 | 60,094 |  |
Foreign currency translation | 0 | 0 |  |
Goodwill before impairment | 106,304 | 106,304 | $ 106,304 |
Accumulated impairment charge | (46,210) | (46,210) | (46,210) |
Goodwill, net | 60,094 | 60,094 | 60,094 |
Estimated future amortization of finite-lived intangible assets [Abstract] |  |  |  |
Goodwill | 60,094 | 60,094 | 60,094 |
PeopleManagement |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill before impairment | 81,092 | 81,092 |  |
Accumulated impairment charge | (79,601) | (79,601) |  |
Goodwill, net | 1,491 | 1,491 |  |
Foreign currency translation | 0 | 0 |  |
Goodwill before impairment | 81,092 | 81,092 | 81,092 |
Accumulated impairment charge | (79,601) | (79,601) | (79,601) |
Goodwill, net | 1,491 | 1,491 | 1,491 |
Estimated future amortization of finite-lived intangible assets [Abstract] |  |  |  |
Goodwill | 1,491 | 1,491 | 1,491 |
PeopleManagement | On-site [Member] |  |  |  |
Estimated future amortization of finite-lived intangible assets [Abstract] |  |  |  |
Goodwill |  |  |  | $ 45,900
Impairment of finite-lived intangible assets |  |  | 9,700 |
PeopleManagement | Customer relationships | On-site [Member] |  |  |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |  |  |
Total future amortization |  |  | 7,200 |
Estimated future amortization of finite-lived intangible assets [Abstract] |  |  |  |
Total future amortization |  |  | 7,200 |
Finite-Lived Intangible Assets, Net |  |  | 7,200 |
PeopleScout |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill before impairment | 142,710 | 143,045 |  |
Accumulated impairment charge | (109,757) | (109,757) |  |
Goodwill, net | 32,953 | 33,288 |  |
Foreign currency translation | (754) | (335) |  |
Goodwill before impairment | 141,956 | 142,710 | 143,045 |
Accumulated impairment charge | (109,757) | (109,757) | (109,757) |
Goodwill, net | 32,199 | 32,953 | 33,288 |
Estimated future amortization of finite-lived intangible assets [Abstract] |  |  |  |
Goodwill | $ 32,199 | 32,953 | 33,288 |
PeopleScout | RPO |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill, net |  | 23,600 |  |
Goodwill, net |  |  | 23,600 |
Estimated future amortization of finite-lived intangible assets [Abstract] |  |  |  |
Goodwill, impairment charge |  |  | (92,200) |
Goodwill |  |  | 23,600 |
Impairment of finite-lived intangible assets |  |  | 25,000 |
PeopleScout | MSP [Member] |  |  |  |
Goodwill [Roll Forward] |  |  |  |
Goodwill, net |  | $ 9,700 |  |
Goodwill, net |  |  | 9,700 |
Estimated future amortization of finite-lived intangible assets [Abstract] |  |  |  |
Goodwill, impairment charge |  |  | (2,400) |
Goodwill |  |  | 9,700 |
PeopleScout | Customer relationships | RPO |  |  |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |  |  |
Total future amortization |  |  | 5,100 |
Estimated future amortization of finite-lived intangible assets [Abstract] |  |  |  |
Total future amortization |  |  | 5,100 |
Finite-Lived Intangible Assets, Net |  |  | $ 5,100 |

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