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VALUATION AND QUALIFYING ACCOUNTS | 12 Months Ended
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Dec. 31, 2020
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
VALUATION AND QUALIFYING ACCOUNTS | SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS December 31, 2020 (In thousands)
|  |  |  | Additions |  |  |  |
Description |  | Balance at beginning of period |  | Charged to costs and expenses |  | Charged to other accounts |  | Deductions |  | Balance at end of period
Deferred Tax Valuation Allowance: |  |  |  |  |  |  |  |
Year ended December 31, 2018 |  | $ | 336,087 |  |  | $ | 330 |  | (1) | $ | — |  |  | $ | — |  |  | $ | 336,417 |
Year ended December 31, 2019 |  | $ | 336,417 |  |  | $ | 60,376 |  | (2) | $ | 13,790 |  | (3) | $ | (1,680) |  |  | $ | 408,903 |
Year ended December 31, 2020 |  | $ | 408,903 |  |  | $ | (27,913) |  | (4) | $ | — |  |  | $ | — |  |  | $ | 380,990 |
(1) Additional valuation allowance for the Tax Cuts and Jobs Act of $6,042 and federal credits of $207, partially offset by reduction of valuation allowance for federal and state net operating losses and federal credits of $5,919. (2) Additional valuation allowance for federal and state net operating losses. (3) Additional valuation allowance charged to accumulated deficit upon the adoption of ASC 842. (4) Reduction of valuation allowance for federal and state net operating losses.

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- Definition The entire disclosure for valuation and qualifying accounts and reserves. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 09 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e24092-122690 + Details
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- References No definition available. + Details
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