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WARRANTY OBLIGATIONS | 3 Months Ended
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Mar. 31, 2022
Product Warranties Disclosures [Abstract] |
WARRANTY OBLIGATIONS | WARRANTY OBLIGATIONS The Company’s warranty activities were as follows:
|  |  | Three Months Ended March 31,
|  |  |  |  | 2022 |  | 2021 |  |
|  |  |  |  | (In thousands)
Warranty obligations, beginning of period |  |  |  |  | $ | 73,377 |  |  | $ | 45,913 |  |  |
Accruals for warranties issued during period |  |  |  |  | 8,910 |  |  | 3,894 |  |  |
Changes in estimates |  |  |  |  | 4,912 |  |  | 7,655 |  |  |
Settlements |  |  |  |  | (5,881) |  |  | (2,930) |  |  |
Increase due to accretion expense |  |  |  |  | 1,515 |  |  | 943 |  |  |
Other |  |  |  |  | 746 |  |  | (922) |  |  |
Warranty obligations, end of period |  |  |  |  | 83,579 |  |  | 54,553 |  |  |
Less: current portion |  |  |  |  | (23,960) |  |  | (14,303) |  |  |
Non-current |  |  |  |  | $ | 59,619 |  |  | $ | 40,250 |  |  |
Changes in Estimates In the three months ended March 31, 2022, the Company recorded $4.9 million in warranty expense from change in estimates primarily related to increase in expedited freight costs and replacement costs for IQ batteries. In the three months ended March 31, 2021, the Company recorded a $6.3 million increase to warranty expense based on continuing analysis of field performance data and diagnostic root-cause failure analysis primarily relating to its prior generation products. The Company also recorded additional warranty expense of $1.3 million in the three months ended March 31, 2021 related to unit costs for prior generation microinverter replacement mainly driven by tariffs.

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- Definition The entire disclosure for standard and extended product warranties and other product guarantee contracts, including a tabular reconciliation of the changes in the guarantor's aggregate product warranty liability for the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -URI http://asc.fasb.org/topic&trid=2155896 + Details
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