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
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2019
Jun. 30, 2019
Mar. 31, 2019
Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]            
Standard product warranty accrual $ 21,578 $ 22,090 $ 22,015 $ 20,927 $ 23,213 $ 24,552