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Restructuring Costs - Narrative (Details) - USD ($) | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Feb. 28, 2021 | May 31, 2020 | Feb. 27, 2022 | May 29, 2022 | May 30, 2021 | May 31, 2020
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Proceeds from sales of property and equipment |  |  | $ 1,096,000 | $ 1,141,000 | $ 12,913,000 | $ 2,434,000
Operating lease, impairment loss |  |  |  |  | 1,700,000 |
Expected restructuring costs |  |  |  | 23,000,000 |  |
BreatheWay |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Impairment of long-lived assets to be disposed of |  |  |  | 0 |  |
Equipment | BreatheWay |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Impairment of long-lived assets to be disposed of | $ 1,900,000 | $ 1,900,000 |  |  |  |
Santa Maria Office |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Impairment of long-lived assets to be disposed of |  |  |  | 3,700,000 |  |
Impairment of leasehold |  |  |  | 5,300,000 |  |
Operating lease, impairment loss |  |  |  | $ 1,600,000 |  |
San Rafael |  |  |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |  |  |
Impairment of long-lived assets to be disposed of |  |  |  |  | 400,000 |
Proceeds from sales of property and equipment |  |  |  |  | $ 2,400,000 |

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- Definition The adjustment to reduce the value of existing agreements that specify the lessee's rights to use the leased property. This expense is charged when the estimates of future profits generated by the leased property are reduced. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=126905981&loc=d3e2420-110228 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 + Details
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- Definition Amount expected to be recognized in earnings for the specified restructuring cost. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)(1)) -URI https://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI https://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(d)) -URI https://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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