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SEGMENT DATA - Schedule of Operating Segment Results (Detail) - USD ($) $ in Thousands | 1 Months Ended | 2 Months Ended | 3 Months Ended | 4 Months Ended | 8 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
May 01, 2019 | Jun. 30, 2019 | Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Mar. 31, 2019 | May 01, 2019 | Dec. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2018
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue | $ 277,674 | $ 635,646 | $ 935,530 | $ 744,406 | $ 487,648 | $ 780,634 | $ 1,026,072 | $ 948,338 | $ 795,797 | $ 1,073,471 | $ 2,610,056 | $ 2,948,218 | $ 3,611,323
Direct operating expenses | 98,310 | 198,772 | 334,931 | 276,719 | 249,866 | 301,632 | 363,444 | 316,740 | 282,874 | 381,184 | 878,956 | 1,163,148 | 1,132,439
Selling, general and administrative expenses | 102,296 | 220,231 | 327,156 | 292,581 | 261,219 | 344,141 | 350,324 | 327,115 | 324,934 | 427,230 | 897,670 | 1,225,097 | 1,350,157
Corporate expenses | 14,506 | 26,818 | 43,547 | 34,657 | 26,419 | 39,949 | 50,840 | 58,513 | 39,141 | 53,647 | 136,171 | 144,572 | 184,216
Depreciation and amortization | 14,544 | 59,383 | 103,435 | 99,379 | 103,347 | 96,768 | 94,972 | 95,268 | 38,290 | 52,834 | 249,623 | 402,929 | 211,951
Impairment charges | 0 | 0 | 5,517 | 0 | 5,378 | 1,727,857 | 0 | 0 | 91,382 | 91,382 | 0 | 1,738,752 | 33,150
Other operating expense, net | 127 | (3,246) | 8,097 | 1,675 | 506 | 1,066 | 1,366 | 9,880 | 27 | 154 | 8,000 | 11,344 | 9,266
Operating income (loss) | $ 47,891 | $ 133,688 | 112,847 | $ 39,395 | $ (159,087) | $ (1,730,779) | 165,126 | $ 140,822 | $ 19,149 | 67,040 | 439,636 | (1,737,624) | 690,144
Segment assets |  |  | 9,202,961 |  |  |  | 11,021,099 |  |  |  | 11,021,099 | 9,202,961 | 7,902,245
Segment assets |  |  |  |  |  |  |  |  |  |  |  |  | 4,367,300
Capital expenditures |  |  |  |  |  |  |  |  |  | 36,197 | 75,993 | 85,205 | 85,245
Share-based compensation expense |  |  |  |  |  |  |  |  |  | 498 | 26,411 | 22,862 | 2,066
Corporate and other reconciling items |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 | 0
Direct operating expenses |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 | 0
Selling, general and administrative expenses |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 | 0
Corporate expenses |  |  |  |  |  |  |  |  |  | 53,667 | 136,203 | 144,624 | 184,283
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 6,335 | 4,978 | 10,117 | 20,008
Impairment charges |  |  |  |  |  |  |  |  |  | 91,382 | 0 | 1,738,752 | 33,150
Other operating expense, net |  |  |  |  |  |  |  |  |  | 154 | 8,000 | 11,344 | 9,266
Operating income (loss) |  |  |  |  |  |  |  |  |  | (151,538) | (149,181) | (1,904,837) | (246,707)
Segment assets |  |  | 796,450 |  |  |  | 497,576 |  |  |  | 497,576 | 796,450 | 370,157
Capital expenditures |  |  |  |  |  |  |  |  |  | 3,757 | 9,997 | 6,241 | 6,888
Share-based compensation expense |  |  |  |  |  |  |  |  |  | 498 | 26,411 | 22,862 | 2,066
Eliminations |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  |  | (2,568) | (5,036) | (7,756) | (6,508)
Direct operating expenses |  |  |  |  |  |  |  |  |  | (364) | (747) | (5,518) | (211)
Selling, general and administrative expenses |  |  |  |  |  |  |  |  |  | (2,184) | (4,257) | (2,186) | (6,230)
Corporate expenses |  |  |  |  |  |  |  |  |  | (20) | (32) | (52) | (67)
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 | 0
Impairment charges |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 | 0
Other operating expense, net |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 | 0
Operating income (loss) |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 | 0
Segment assets |  |  | (3,585) |  |  |  | (3,778) |  |  |  | (3,778) | (3,585) | (206)
Capital expenditures |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 | 0
Share-based compensation expense |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 | 0
Intersegment revenues |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  |  | 2,568 | 5,036 | 7,756 | 6,508
Audio | Operating Segments |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  |  | 1,006,677 | 2,447,800 | 2,681,225 | 3,353,770
Direct operating expenses |  |  |  |  |  |  |  |  |  | 371,989 | 858,597 | 1,136,279 | 1,104,290
Selling, general and administrative expenses |  |  |  |  |  |  |  |  |  | 383,342 | 800,796 | 1,076,063 | 1,208,882
Corporate expenses |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 41,233 | 229,869 | 369,310 | 173,657
Impairment charges |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 | 0
Other operating expense, net |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 | 0
Operating income (loss) |  |  |  |  |  |  |  |  |  | 210,113 | 558,538 | 99,573 | 866,941
Segment assets |  |  | 7,936,468 |  |  |  | 10,040,750 |  |  |  | 10,040,750 | 7,936,468 | 7,084,222
Capital expenditures |  |  |  |  |  |  |  |  |  | 31,177 | 62,016 | 73,859 | 72,392
Share-based compensation expense |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 | 0
Audio | Intersegment revenues |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  |  | 243 | 447 | 670 | 0
Audio and Media Services |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Segment assets |  |  | $ 473,628 |  |  |  | $ 486,551 |  |  |  | 486,551 | 473,628 | 448,072
Audio and Media Services | Operating Segments |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  |  | 69,362 | 167,292 | 274,749 | 264,061
Direct operating expenses |  |  |  |  |  |  |  |  |  | 9,559 | 21,106 | 32,387 | 28,360
Selling, general and administrative expenses |  |  |  |  |  |  |  |  |  | 46,072 | 101,131 | 151,220 | 147,505
Corporate expenses |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Depreciation and amortization |  |  |  |  |  |  |  |  |  | 5,266 | 14,776 | 23,502 | 18,286
Impairment charges |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 | 0
Other operating expense, net |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 | 0
Operating income (loss) |  |  |  |  |  |  |  |  |  | 8,465 | 30,279 | 67,640 | 69,910
Capital expenditures |  |  |  |  |  |  |  |  |  | 1,263 | 3,980 | 5,105 | 5,965
Share-based compensation expense |  |  |  |  |  |  |  |  |  | 0 | 0 | 0 | 0
Audio and Media Services | Intersegment revenues |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  |  | $ 2,325 | $ 4,589 | $ 7,086 | $ 6,508

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