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WARRANTY OBLIGATIONS
3 Months Ended
Mar. 31, 2023
Product Warranties Disclosures [Abstract]  
WARRANTY OBLIGATIONS WARRANTY OBLIGATIONS
The Company’s warranty obligation activities were as follows:
Three Months Ended
March 31,
20232022
(In thousands)
Warranty obligations, beginning of period$131,446 $73,377 
Accruals for warranties issued during period16,171 8,910 
Changes in estimates3,728 4,912 
Settlements(8,894)(5,881)
Increase due to accretion expense3,545 1,515 
Other38 746 
Warranty obligations, end of period146,034 83,579 
Less: warranty obligations, current(34,513)(23,960)
Warranty obligations, non-current$111,521 $59,619 
Changes in Estimates
In the three months ended March 31, 2023, the Company recorded $3.7 million in warranty expense from change in estimates, of which $9.9 million related to continuing analysis of field performance data and diagnostic root-cause failure analysis primarily for Enphase IQ™ Battery storage systems and prior generation products, partially offset by $6.2 million related to a decrease in product replacement costs and labor reimbursement. In the three months ended March 31, 2022, the Company recorded $4.9 million in warranty expense from a change in estimates primarily related to increase in expedited freight costs and replacement costs for IQ batteries.