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Acquisitions and Divestitures - Additional Information (Details) - USD ($) $ in Millions |  |  | 12 Months Ended |
--- | --- | --- | --- | ---
Jan. 31, 2020 | Apr. 01, 2019 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Mar. 31, 2019
Business Acquisition [Line Items] |  |  |  |  |  |
Payments to acquire business |  |  | $ 17.1 | $ 0.0 | $ 0.0 |
Innovative Mattress Solutions, LLC (IMS) |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Transaction value |  | $ 24.0 |  |  |  |
Liabilities assumed |  |  |  |  |  | $ 11.0
Consideration transferred |  | 13.2 |  |  |  |
Cash and equivalents |  | 5.1 |  |  |  |
Payments to acquire business |  | 8.1 |  |  |  |
Trade Name and Customer Database | Innovative Mattress Solutions, LLC (IMS) |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Intangible assets acquired |  | $ 2.1 |  |  |  |
Subsequent Event | Sherwood Acquisition Holdings, LLC |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Payments to acquire business | $ 40.0 |  |  |  |  |
Voting interest acquired | 80.00% |  |  |  |  |

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