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Other Assets and Accrued Liabilities - Narrative (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2022 | Mar. 31, 2021 | Sep. 30, 2020 | Dec. 31, 2021
Workforce Reduction Program |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Payments for restructuring | $ 800 | $ 0 |  |
FCC spectrum licenses |  |  |  |
Business Acquisition [Line Items] |  |  |  |
Indefinite-lived intangible assets acquired | $ 16,100 |  | $ 16,100 | $ 16,100

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- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 17 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3367-108585 + Details
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