XML 38 R20.htm IDEA: XBRL DOCUMENT
v3.22.0.1

Schedule II - Valuation and Qualifying Accounts | 12 Months Ended
--- | ---
Dec. 31, 2021
SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] |
Schedule II — Valuation and Qualifying Accounts | Schedule II — Valuation and Qualifying Accounts (In thousands)
|  |  |  |  | Additions |  |  |  |
|  | Balance at Beginning of Period |  |  |  | Charged to Costs and Expenses |  | Charged to Other Operating Revenue |  | Deductions |  | Balance at End of Period
Year ended December 31, 2021 |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 1,268 |  |  |  |  | $ | 1,670 |  |  | $ | — |  |  | $ | 1,204 |  | 2 | $ | 1,734 |
Allowance for revenue adjustments 1 |  | 1,005 |  |  |  |  | — |  |  | 7,943 |  |  | 7,422 |  | 3 | 1,526 |
Deferred tax valuation allowance |  | 395 |  |  |  |  | 4,230 |  |  | — |  |  | — |  |  | 4,625 |
|  | 2,668 |  |  |  |  | 5,900 |  |  | 7,943 |  |  | 8,626 |  |  | 7,885 |
Year ended December 31, 2020 |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 1,316 |  |  |  |  | $ | 567 |  |  | $ | — |  |  | $ | 615 |  | 2 | $ | 1,268 |
Allowance for revenue adjustments 1 |  | 737 |  |  |  |  | — |  |  | 4,751 |  |  | 4,483 |  | 3 | 1,005 |
Deferred tax valuation allowance |  | 395 |  |  |  |  | — |  |  | — |  |  | — |  |  | 395 |
|  | 2,448 |  |  |  |  | 567 |  |  | 4,751 |  |  | 5,098 |  |  | 2,668 |
Year ended December 31, 2019 |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 1,290 |  |  |  |  | $ | 752 |  |  | $ | — |  |  | $ | 726 |  | 2 | $ | 1,316 |
Allowance for revenue adjustments 1 |  | 755 |  |  |  |  | — |  |  | 3,339 |  |  | 3,357 |  | 3 | 737 |
Deferred tax valuation allowance |  | 395 |  |  |  |  | — |  |  | — |  |  | — |  |  | 395 |
|  | 2,440 |  |  |  |  | 752 |  |  | 3,339 |  |  | 4,083 |  |  | 2,448 |
1 Represents an allowance for revenue adjustments resulting from future billing rate changes. 2 Represents uncollectible accounts written off, net of recoveries. 3 Represents adjustments to billed accounts receivable.

X
- 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
Name: | srt_ScheduleOfValuationAndQualifyingAccountsDisclosureTextBlock
Namespace Prefix: | srt_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | srt_ValuationAndQualifyingAccountsAbstract
Namespace Prefix: | srt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration