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v3.20.2

Acquisitions and Divestitures (Details) - USD ($) |  |  |  |  |  | 9 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 02, 2019 | Oct. 25, 2019 | Aug. 31, 2018 | Jun. 07, 2018 | Jul. 31, 2017 | Feb. 29, 2020 | May 30, 2020 | Jun. 01, 2019 | Jun. 02, 2018
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Payments to Acquire Intangible Assets |  |  |  |  |  |  | $ 0 | $ 4,800,000 | $ 0
Business Combination, Separately Recognized Transactions, Net Gains and Losses |  |  |  |  |  |  | $ 5,900,000 |  |
Contingent Equity Purchase |  |  |  |  |  |  | 33.00% |  |
Gain on consolidation of equity method investments |  |  |  |  |  |  | $ 36,200,000 | 0 | 0
Investments in nonconsolidated affiliates |  |  |  |  |  |  | 12,200,000 | 89,000,000.0 |
Goodwill, Purchase Accounting Adjustments |  |  |  |  |  |  | 6,300,000 |  |
Business Combinations, Changes in Deferred Tax Liabilities |  |  |  |  |  |  | 900,000 |  |
Business Combinations, Changes in Inventory Step-up |  |  |  |  |  |  | 0 |  |
Business Combinations, Changes in Backlog |  |  |  |  |  |  | (1,700,000) |  |
Business Combinations, Changes in Deferred Revenue |  |  |  |  |  |  | (200,000) |  |
Business Combinations, Changes in Tradename |  |  |  |  |  |  | 4,000,000.0 |  |
Business Combinations, Changes in Product Development |  |  |  |  |  |  | 1,000,000.0 |  |
Business Combinations, Changes in Customer Relationships |  |  |  |  |  |  | 1,000,000.0 |  |
Business Combinations, Measurement Period Adjustments |  |  |  |  |  |  | 4,100,000 |  |
Impairment charges |  |  |  |  |  |  | 205,400,000 | 0 | $ 0
Business Acquisition, Pro Forma Revenue |  |  |  |  |  |  | 2,580,600,000 | 2,757,300,000 |
Business Acquisition, Pro Forma Net Income (Loss) |  |  |  |  |  |  | (46,300,000) | 163,700,000 |
MAARS |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired |  |  | 48.20% |  |  |  |  |  |
Purchase Price |  |  | $ 6,100,000 |  |  |  |  |  |
HAY |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired | 34.00% |  |  | 33.00% |  |  |  |  |
Purchase Price | $ 79,000,000.0 |  |  | $ 65,500,000 |  |  |  |  |
Payments to Acquire Intangible Assets |  |  |  | $ 4,800,000 |  |  |  |  |
Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions | 67.00% |  |  |  |  |  |  |  |
Goodwill, Acquired During Period |  |  |  |  |  |  | 111,100,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents | $ 12,100,000 |  |  |  |  |  |  |  |
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedWorkingCapital | 12,300,000 |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment | 900,000 |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other | 3,900,000 |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other | (3,100,000) |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net | 26,100,000 |  |  |  |  |  |  |  |
Gain on consolidation of equity method investments |  |  |  |  |  |  | 300,000 |  |
Investments in nonconsolidated affiliates | $ 67,800,000 |  |  |  |  |  |  |  |
Deferred Tax Liabilities, Goodwill |  |  |  |  |  |  | 26,200,000 |  |
Finite and Indefinite-Lived Intangible Assets Aquired |  |  |  |  |  | $ 114,800,000 | 118,900,000 |  |
naughtone |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Business Acquisition, Percentage of Voting Interests Acquired |  | 47.50% |  |  |  |  |  |  |
Purchase Price |  | $ 45,900,000 |  |  |  |  |  |  |
Goodwill, Acquired During Period |  |  |  |  |  |  | 57,500,000 |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents |  | 5,100,000 |  |  |  |  |  |  |
BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedWorkingCapital |  | 1,300,000 |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment |  | 800,000 |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net |  | 7,200,000 |  |  |  |  |  |  |
Gain on consolidation of equity method investments |  |  |  |  |  |  | 30,000,000.0 |  |
Investments in nonconsolidated affiliates |  | 20,500,000 |  |  |  |  |  |  |
Finite and Indefinite-Lived Intangible Assets Aquired |  | $ 38,900,000 |  |  |  |  |  |  |
Wholly-owned contract furniture dealership | CANADA |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Proceeds from Divestiture of Businesses |  |  |  |  | $ 2,000,000.0 |  |  |  |
Gain (Loss) on Disposition of Business |  |  |  |  |  |  |  | $ 1,100,000 |
Fair Value Adjustment to Inventory [Member] | HAY |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 24 days |  |  |  |  |  |  |  |
Finite-lived Intangible Assets Acquired |  |  |  |  |  | (3,400,000) | (3,400,000) |  |
Fair Value Adjustment to Inventory [Member] | naughtone |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  | 3 months 18 days |  |  |  |  |  |  |
Finite-lived Intangible Assets Acquired |  | $ (200,000) |  |  |  |  |  |  |
Order or Production Backlog [Member] | HAY |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 3 months 18 days |  |  |  |  |  |  |  |
Finite-lived Intangible Assets Acquired |  |  |  |  |  | (3,400,000) | (1,700,000) |  |
Order or Production Backlog [Member] | naughtone |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  | 3 months 18 days |  |  |  |  |  |  |
Finite-lived Intangible Assets Acquired |  | $ (800,000) |  |  |  |  |  |  |
DeferredRevenueIntangible [Member] | HAY |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 3 days |  |  |  |  |  |  |  |
Finite-lived Intangible Assets Acquired |  |  |  |  |  | (2,000,000.0) | (2,200,000) |  |
Technology-Based Intangible Assets [Member] | HAY |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 8 years |  |  |  |  |  |  |  |
Finite-lived Intangible Assets Acquired |  |  |  |  |  | (21,000,000.0) | (22,000,000.0) |  |
Customer Relationships | HAY |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life | 9 years |  |  |  |  |  |  |  |
Finite-lived Intangible Assets Acquired |  |  |  |  |  | (33,000,000.0) | (34,000,000.0) |  |
Customer Relationships | naughtone |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  | 9 years |  |  |  |  |  |  |
Finite-lived Intangible Assets Acquired |  | $ (29,400,000) |  |  |  |  |  |  |
Trade Names | HAY |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Indefinite-lived Intangible Assets Acquired |  |  |  |  |  | 56,000,000.0 | 60,000,000.0 |  |
Trade Names | naughtone |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Indefinite-lived Intangible Assets Acquired |  | $ 8,500,000 |  |  |  |  |  |  |
North America Contract | naughtone |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Goodwill, Acquired During Period |  |  |  |  |  |  | 35,000,000.0 |  |
International Contract | HAY |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Goodwill, Acquired During Period |  |  |  |  |  |  | 101,100,000 |  |
International Contract | naughtone |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Goodwill, Acquired During Period |  |  |  |  |  | $ 22,500,000 |  |  |
Retail | HAY |  |  |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |  |  |
Goodwill, Acquired During Period |  |  |  |  |  |  | $ 10,000,000.0 |  |

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