Contingencies (Details) - USD ($) $ in Thousands	Apr. 24, 2018	Dec. 31, 2018
Civil Penalty
Loss Contingencies [Line Items]
Loss contingency accrual		$ 15,000
Civil Penalty | Other Current Liabilities
Loss Contingencies [Line Items]
Loss contingency accrual		3,500
Civil Penalty | Other Noncurrent Liabilities
Loss Contingencies [Line Items]
Loss contingency accrual		10,500
Product Quality Matters
Loss Contingencies [Line Items]
Loss contingency accrual		4,900
Minimum | Civil Penalty
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss Reduction	$ 15,000
Minimum | Product Quality Matters
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss		4,900
Maximum | Civil Penalty
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss	$ 30,000
Maximum | Product Quality Matters
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss		$ 12,100