Quarterly report pursuant to Section 13 or 15(d)

COMMITMENTS AND CONTINGENCIES - Narrative (Details)

v3.20.2
COMMITMENTS AND CONTINGENCIES - Narrative (Details) - USD ($)
$ in Thousands
Sep. 30, 2020
Jun. 30, 2020
Dec. 31, 2019
Sep. 30, 2019
Jun. 30, 2019
Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]            
Standard product warranty accrual $ 23,259 $ 21,578 $ 22,015 $ 21,311 $ 20,927 $ 24,552