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Contingencies - Summary of Cumulative Trauma Product Liability Claims Activity (Details) - lawsuit
6 Months Ended 12 Months Ended
Jun. 30, 2019
Dec. 31, 2018
Lawsuit    
Loss Contingency, Quantities [Roll Forward]    
Beginning of period 1,481 1,420
New lawsuits 133 369
Settled and dismissed lawsuits (62) (308)
End of period 1,552 1,481
Damages from Product Defects    
Loss Contingency, Quantities [Roll Forward]    
Beginning of period 2,355 2,242
New lawsuits 233 479
Settled and dismissed lawsuits (138) (366)
End of period 2,450 2,355