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Schedule II - Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2019
Valuation And Qualifying Accounts [Abstract] |
Schedule II - Valuation and Qualifying Accounts | SCHEDULE II — VALUATION AND QUALIFYING ACCOUNTS (In thousands)
|  | Balance at |  |  | Provision for |  |  | Write-offs, |  |  |  |  |
|  | Beginning of |  |  | Doubtful |  |  | Net of |  |  | Balance at |
|  | Period |  |  | Accounts |  |  | Recoveries |  |  | End of Period |
Allowance for doubtful accounts: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Year Ended December 31, 2019 |  | $ | 90,775 |  |  | $ | 39,270 |  |  | $ | (35,484 | ) |  | $ | 94,561 |
Year Ended December 31, 2018 |  |  | 92,571 |  |  |  | 39,762 |  |  |  | (41,558 | ) |  |  | 90,775 |
Year Ended December 31, 2017 |  |  | 97,920 |  |  |  | 20,603 |  |  |  | (25,952 | ) |  |  | 92,571 |
|  | Balance at |  |  |  |  |  |  |  |  |  |  |  |  |
|  | Beginning of |  |  |  |  |  |  |  |  |  |  | Balance at |
|  | Period |  |  | Increase |  |  | Decrease |  |  | End of Period |
Deferred income tax valuation allowance: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Year Ended December 31, 2019 |  | $ | 2,477,703 |  |  | $ | 96,353 |  |  | $ | — |  |  | $ | 2,574,056 |
Year Ended December 31, 2018 |  |  | 2,513,738 |  |  |  | — |  |  |  | (36,035 | ) |  |  | 2,477,703 |
Year Ended December 31, 2017 |  |  | 2,583,274 |  |  |  | — |  |  |  | (69,536 | ) |  |  | 2,513,738 |

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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=26873400&loc=d3e24092-122690 + Details
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- References No definition available. + Details
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