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Commitments and Contingencies - Changes in Warranty Liability (Details) - USD ($)
$ in Thousands
3 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Changes in the warranty liability:    
Beginning of the period $ 48,832 $ 40,039
Provision 8,446 5,389
Settlements (8,315) (6,161)
Currency translation 130 183
End of the period $ 49,093 $ 39,450