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Summary of Significant Accounting Policies - Additional Information (Details) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 USD ($) channel facility shares | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($) | Feb. 01, 2016 USD ($)
Business Acquisition [Line Items] |  |  |  |
Number of products sales channels | channel | 2 |  |  |
Noncontrolling interest, ownership percentage by parent | 100.00% |  |  |
Depreciation expense | $ 53,500,000 | $ 57,700,000 | $ 59,400,000 |
Product warranty accrual, current | 14,900,000 | 16,100,000 |  |
Product warranty accrual, noncurrent | 14,700,000 | 15,200,000 |  |
Allowance for doubtful accounts included in accounts receivable, net | 23,300,000 | 19,500,000 |  |
Shipping and handling included in net sales | 11,100,000 | 14,700,000 | 12,500,000 |
Shipping and handling included in cost of sales | 161,600,000 | 169,200,000 | 142,500,000 |
Other income, net of expense | 9,500,000 | 15,600,000 | 0 |
Advertising costs charged to expense | 360,500,000 | 326,700,000 | 274,200,000 |
Advertising costs deferred and included in Prepaid expenses and other current assets | 13,700,000 | 9,700,000 |  |
Research and development costs charged to expense | 28,700,000 | 21,600,000 | 21,000,000 |
Royalty revenue, net of royalty expense | $ 18,300,000 | 18,100,000 | $ 13,700,000 |
Treasury stock sold (in shares) | shares | 69,686 |  |  |
Proceeds from issuance of treasury shares | $ 5,000,000 |  |  |
Self insurance reserve, excess loss coverage per claim per year | 800,000 |  |  |
Self insurance reserve, current | 6,600,000 | 4,800,000 |  |
Self insurance reserve, noncurrent | $ 11,500,000 | $ 10,000,000 |  |
Number of active plants | facility | 2 |  |  |
Number of previously closed US facilities | facility | 9 |  |  |
Term of supply agreements, minimum | 2 years |  |  |
Term of supply agreements, maximum | 5 years |  |  |
Restructuring expenses | $ 13,500,000 |  |  |
Sealy Canada |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Noncontrolling interest, ownership percentage by parent | 100.00% |  |  |
Variable Interest Entity, Primary Beneficiary | Comfort Revolution |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Equity method investment, ownership percentage | 45.00% |  |  |
Subsequent Event |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Amount of shares authorized to be repurchased |  |  |  | $ 200,000,000.0

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