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Contingencies - Additional Information (Details) $ in Thousands |  |  |  | 1 Months Ended | 6 Months Ended | 12 Months Ended | 36 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 08, 2017 USD ($) | Feb. 09, 2017 USD ($) | Oct. 06, 2016 USD ($) policy | Aug. 31, 2017 USD ($) | Dec. 31, 2017 USD ($) | Jun. 30, 2017 USD ($) LegalMatter | Jun. 30, 2017 USD ($) LegalMatter | Jun. 30, 2017 USD ($) LegalMatter | Jun. 30, 2017 USD ($) LegalMatter Vendor | Jun. 30, 2017 USD ($) LegalMatter category | Jun. 30, 2016 USD ($) | Dec. 31, 2010 policy | Dec. 31, 2009 policy | Dec. 31, 2015 USD ($) LegalMatter | Dec. 31, 2016 USD ($) LegalMatter
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of main categories of product liability claims | category |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |
Cumulative trauma liability claims, term |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |
Loss contingency, years of activity |  |  |  |  |  | 5 years |  |  |  |  |  |  |  |  |
Number of insurance carriers |  |  |  |  |  |  | 3 |  | 20 |  |  |  |  |  |
Insurance receivables |  |  |  |  |  | $ 108,600 | $ 108,600 | $ 108,600 | $ 108,600 | $ 108,600 |  |  |  | $ 229,500 | $ 159,900
Insurance receivables, current |  |  |  |  |  | 7,400 | 7,400 | 7,400 | 7,400 | 7,400 |  |  |  |  | 2,000
Insurance receivables, noncurrent |  |  |  |  |  | 101,200 | 101,200 | 101,200 | 101,200 | 101,200 |  |  |  |  | 157,900
Notes receivable from insurance companies |  |  |  |  |  | 78,000 | 78,000 | 78,000 | 78,000 | 78,000 |  |  |  | $ 8,700 | 67,300
Notes receivable from insurance companies, current |  |  |  |  |  | 14,161 | 14,161 | 14,161 | 14,161 | 14,161 |  |  |  |  | 4,180
Notes receivable from insurance companies, noncurrent |  |  |  |  |  | 63,833 | 63,833 | 63,833 | 63,833 | 63,833 |  |  |  |  | 63,147
Attorneys' fees |  | $ 11,800 |  |  |  |  |  |  |  |  |  |  |  |  |
Payment received pursuant to insurance policies | $ 80,900 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Single Incident |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product liability accrual |  |  |  |  |  | $ 3,500 | $ 3,500 | 3,500 | $ 3,500 | $ 3,500 |  |  |  |  | $ 3,400
Product liability expense |  |  |  |  |  |  |  | $ 200 |  |  | $ 300 |  |  |  |
Lawsuit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of lawsuits | LegalMatter |  |  |  |  |  | 1,472 | 1,472 | 1,472 | 1,472 | 1,472 |  |  |  | 1,988 | 1,794
Damages from Product Defects |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of lawsuits | LegalMatter |  |  |  |  |  | 2,831 | 2,831 | 2,831 | 2,831 | 2,831 |  |  |  | 3,779 | 3,023
Cumulative Trauma |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product liability accrual |  |  |  |  |  | $ 93,100 | $ 93,100 | $ 93,100 | $ 93,100 | $ 93,100 |  |  |  |  |
Product liability expense |  |  |  |  |  |  |  | 97,600 |  |  |  |  |  | $ 150,900 |
Uninsured Cumulative Trauma |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product liability expense |  |  |  |  |  |  |  | 29,600 |  |  | $ 300 |  |  |  |
Other Current Liabilities | Cumulative Trauma |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product liability accrual |  |  |  |  |  | 57,300 | 57,300 | 57,300 | 57,300 | 57,300 |  |  |  |  | $ 11,100
Other Noncurrent Liabilities | Cumulative Trauma |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Product liability accrual |  |  |  |  |  | 35,800 | 35,800 | 35,800 | 35,800 | 35,800 |  |  |  |  |
North River Insurance Company |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Litigation settlement amount, awarded to (against) |  |  | $ 10,900 |  |  |  |  |  |  |  |  |  |  |  |
Gain contingency, number of policies allegedly breached | policy |  |  | 3 |  |  |  |  |  |  |  |  | 3 | 1 |  |
Damages awarded |  | 46,900 |  |  |  |  |  |  |  |  |  |  |  |  |
Pre-judgment interest |  | 5,100 |  |  |  |  |  |  |  |  |  |  |  |  |
North River Insurance Company | Punitive Damages |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Damages awarded |  | $ 30,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Settled Litigation | Scenario, Forecast |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to resolve cumulative trauma claims |  |  |  |  | $ 25,200 |  |  |  |  |  |  |  |  |  |
Settled Litigation | Scenario, Forecast | Couch claim |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Payments to resolve cumulative trauma claims |  |  |  | $ 75,200 |  |  |  |  |  |  |  |  |  |  |
Pending Litigation [Member] | Cumulative Trauma |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated indemnity for all other remaining asserted cumulative trauma product liability claims |  |  |  |  |  | $ 17,900 | $ 17,900 | $ 17,900 | $ 17,900 | $ 17,900 |  |  |  |  |

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