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WARRANTY ACCRUALS (Tables)
 3 Months Ended
Mar. 31, 2020
Guarantees and Product Warranties [Abstract]  
Changes in accrual balance
The changes in the Company's accrual balance in the three months ended March 31, 2020 were as follows (in thousands):
Balance at January 1, 2020
$
—

Assumed liability in connection with ECI Merger
15,706

Current period provisions
502

Settlements
(528
)
Balance at March 31, 2020
$
15,680