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Long-Term Debt - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 | Jun. 30, 2021 | Jun. 30, 2020 | Dec. 31, 2020
Debt Instrument [Line Items] |  |  |  |
Cash |  | $ 2,437,127 |  | $ 2,501,452
Repayments of credit facilities |  | 1,205,099 | $ 527,535 |
Long-term debt |  | 10,612,560 |  | 12,469,362
Fair value, excluding the redemption note |  | 12,410,000 |  | 13,350,000
Long-term debt excluding the Redemption Note |  | $ 12,000,000 |  | $ 13,150,000
WML | Senior Secured Revolving Credit Facility | Forecast |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Revolving credit facility, maximum borrowing capacity | $ 1,500,000 |  |  |
Term of facility | 4 years |  |  |
WML | WML Credit Facilities | Senior Secured Revolving Credit Facility | Forecast |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Repayments of credit facilities | $ 1,260,000 |  |  |

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- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=118262064&loc=SL116631418-115840 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section 45 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=118262064&loc=SL116631419-115840 + Details
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