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Debt - Schedule of Long Term Debt (Details) $ in Thousands | Mar. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2021 AUD ($) | Dec. 31, 2020 USD ($)
--- | --- | --- | --- | ---
Debt Instrument [Line Items] |  |  |  |
Debt (inclusive of discount) | $ 10,328,276,000 | $ 9,364,451,000 |  | $ 8,797,424,000
UNAMORTIZED DEFERRED FINANCING COSTS | (94,085,000) | (92,510,000) |  | (94,110,000)
Total Long-term Debt (including current portion) | 10,234,191,000 | 9,271,941,000 |  | 8,703,314,000
Long-term debt, gross, current maturities | (91,180,000) | (310,084,000) |  | (193,759,000)
Long-term debt, net of current portion | 10,237,096,000 | 9,054,367,000 |  | 8,603,665,000
Unamortized deferred financing costs, current | 0 | 656,000 |  |
Unamortized deferred financing costs | (94,085,000) | (91,854,000) |  | (94,110,000)
Carrying amount, current portion | (91,180,000) | (309,428,000) |  | (193,759,000)
Long-term debt, net of current portion | 10,143,011,000 | 8,962,513,000 |  | 8,509,555,000
Australian Dollar Term Loan |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt (inclusive of discount) | 226,517,000 | 223,182,000 | $ 350,000 | 243,152,000
UNAMORTIZED DEFERRED FINANCING COSTS | (517,000) | (656,000) |  | (1,624,000)
Total Long-term Debt (including current portion) | 226,000,000 | 222,526,000 |  | 241,528,000
Fair value | 229,130,000 | 223,530,000 |  | 244,014,000
Real Estate Mortgages, Finance Lease Liabilities And Other |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt (inclusive of discount) | 446,394,000 | 460,648,000 |  | 511,922,000
UNAMORTIZED DEFERRED FINANCING COSTS | (795,000) | (840,000) |  | (1,086,000)
Total Long-term Debt (including current portion) | 445,599,000 | 459,808,000 |  | 510,836,000
Fair value | 446,394,000 | 460,648,000 |  | 511,922,000
Accounts Receivable Securitization Program |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt (inclusive of discount) | 300,000,000 | 0 |  | 85,000,000
UNAMORTIZED DEFERRED FINANCING COSTS | (450,000) | (450,000) |  | (152,000)
Total Long-term Debt (including current portion) | 299,550,000 | (450,000) |  | 84,848,000
Fair value | 300,000,000 | 0 |  | 85,000,000
New Credit Agreement | Revolving Credit Facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt (inclusive of discount) | 650,000,000 | 0 |  | 0
UNAMORTIZED DEFERRED FINANCING COSTS | (10,096,000) | (5,174,000) |  | (8,620,000)
Total Long-term Debt (including current portion) | 639,904,000 | (5,174,000) |  | (8,620,000)
Fair value | 650,000,000 | 0 |  | 0
Term Loan A | Term Loan Facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt (inclusive of discount) | 250,000,000 | 203,125,000 |  | 215,625,000
UNAMORTIZED DEFERRED FINANCING COSTS | 0 | 0 |  | 0
Total Long-term Debt (including current portion) | 250,000,000 | 203,125,000 |  | 215,625,000
Fair value | 250,000,000 | 203,125,000 |  | 215,625,000
Term Loan B | Term Loan Facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt (inclusive of discount) | 671,153,000 | 672,847,000 |  | 679,621,000
UNAMORTIZED DEFERRED FINANCING COSTS | (4,683,000) | (4,995,000) |  | (6,244,000)
Total Long-term Debt (including current portion) | 666,470,000 | 667,852,000 |  | 673,377,000
Fair value | 672,000,000 | 675,500,000 |  | 680,750,000
UK Bilateral Revolving Credit Facility | Revolving Credit Facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Debt (inclusive of discount) | 183,870,000 | 189,168,000 |  | 191,101,000
UNAMORTIZED DEFERRED FINANCING COSTS | (525,000) | (709,000) |  | (1,307,000)
Total Long-term Debt (including current portion) | 183,345,000 | 188,459,000 |  | 189,794,000
Fair value | $ 183,870,000 | 189,168,000 |  | $ 191,101,000
GBP Senior Notes 3.875 Percent due 2025 | Senior Notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Stated interest rate (as a percent) | 3.875% |  |  |
Debt (inclusive of discount) | $ 525,342,000 | 540,481,000 |  |
UNAMORTIZED DEFERRED FINANCING COSTS | (3,554,000) | (3,912,000) |  |
Total Long-term Debt (including current portion) | 521,788,000 | 536,569,000 |  |
Fair value | $ 521,560,000 | 542,508,000 |  |
47/8% Notes due 2027 | Senior Notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Stated interest rate (as a percent) | 4.875% |  |  |
Debt (inclusive of discount) | $ 1,000,000,000 | 1,000,000,000 |  |
UNAMORTIZED DEFERRED FINANCING COSTS | (7,821,000) | (8,176,000) |  |
Total Long-term Debt (including current portion) | 992,179,000 | 991,824,000 |  |
Fair value | $ 987,500,000 | 1,030,000,000 |  |
Senior Notes 4.875 Percent due 2028 | Senior Notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Stated interest rate (as a percent) | 5.25% |  |  |
Debt (inclusive of discount) | $ 825,000,000 | 825,000,000 |  |
UNAMORTIZED DEFERRED FINANCING COSTS | (7,085,000) | (7,380,000) |  |
Total Long-term Debt (including current portion) | 817,915,000 | 817,620,000 |  |
Fair value | $ 814,688,000 | 862,125,000 |  |
5% Notes due 2028 | Senior Notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Stated interest rate (as a percent) | 5.00% |  |  |
Debt (inclusive of discount) | $ 500,000,000 | 500,000,000 |  |
UNAMORTIZED DEFERRED FINANCING COSTS | (4,582,000) | (4,763,000) |  |
Total Long-term Debt (including current portion) | 495,418,000 | 495,237,000 |  |
Fair value | $ 485,000,000 | 513,750,000 |  |
47/8% Notes due 2029 | Senior Notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Stated interest rate (as a percent) | 4.875% |  |  |
Debt (inclusive of discount) | $ 1,000,000,000 | 1,000,000,000 |  |
UNAMORTIZED DEFERRED FINANCING COSTS | (10,849,000) | (11,211,000) |  |
Total Long-term Debt (including current portion) | 989,151,000 | 988,789,000 |  |
Fair value | $ 950,000,000 | 1,022,500,000 |  |
51/4% Notes due 2030 | Senior Notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Stated interest rate (as a percent) | 5.25% |  |  |
Debt (inclusive of discount) | $ 1,300,000,000 | 1,300,000,000 |  |
UNAMORTIZED DEFERRED FINANCING COSTS | (12,535,000) | (12,911,000) |  |
Total Long-term Debt (including current portion) | 1,287,465,000 | 1,287,089,000 |  |
Fair value | $ 1,261,000,000 | 1,355,250,000 |  |
41/2% Notes | Senior Notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Stated interest rate (as a percent) | 4.50% |  |  |
Debt (inclusive of discount) | $ 1,100,000,000 | 1,100,000,000 |  |
UNAMORTIZED DEFERRED FINANCING COSTS | (11,093,000) | (11,404,000) |  |
Total Long-term Debt (including current portion) | 1,088,907,000 | 1,088,596,000 |  |
Fair value | $ 1,009,250,000 | $ 1,094,500,000 |  |
5% Notes due 2032 | Senior Notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Stated interest rate (as a percent) | 5.00% | 5.00% | 5.00% |
Debt (inclusive of discount) | $ 750,000,000 | $ 750,000,000 |  |
UNAMORTIZED DEFERRED FINANCING COSTS | (13,499,000) | (13,782,000) |  |
Total Long-term Debt (including current portion) | 736,501,000 | 736,218,000 |  |
Fair value | $ 705,000,000 | 767,813,000 |  |
55/8% Notes | Senior Notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Stated interest rate (as a percent) | 5.625% |  |  |
Debt (inclusive of discount) | $ 600,000,000 | 600,000,000 |  |
UNAMORTIZED DEFERRED FINANCING COSTS | (6,001,000) | (6,147,000) |  |
Total Long-term Debt (including current portion) | 593,999,000 | 593,853,000 |  |
Fair value | $ 590,250,000 | $ 637,500,000 |  |

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