Quarterly report pursuant to Section 13 or 15(d)

LONG-LIVED ASSETS (Definite-lived Intangibles) (Details)

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LONG-LIVED ASSETS (Definite-lived Intangibles) (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Finite-lived Intangible Assets [Roll Forward]    
Gross carrying amount $ 1,462,734  
Accumulated amortization (607,134)  
Net 855,600  
Acquisitions—current year 12,779  
Acquisitions—prior year 5,366  
Foreign exchange (13,152)  
Other (2) (23,915)  
Net change (18,922)  
Amortization (51,901) $ (64,236)
Foreign exchange 4,879  
Other (2) [1] 24,150  
Net change (22,872)  
Gross carrying amount 1,443,812  
Accumulated amortization (630,006)  
Net $ 813,806  
Weighted-average lives of definite-lived intangible assets 3 years  
Impairment charge, definite-lived intangible assets   10,068
Client/vendor relationships [Member]    
Finite-lived Intangible Assets [Roll Forward]    
Gross carrying amount $ 496,074  
Accumulated amortization (146,397)  
Net 349,677  
Acquisitions—current year 520  
Acquisitions—prior year 5,366  
Foreign exchange (1,579)  
Other (2) (15,360)  
Net change (11,053)  
Amortization (21,669)  
Foreign exchange 1,330  
Other (2) [1] 15,360  
Net change (4,979)  
Gross carrying amount 485,021  
Accumulated amortization (151,376)  
Net $ 333,645  
Weighted-average lives of definite-lived intangible assets 5 years  
Revenue-generating contracts [Member]    
Finite-lived Intangible Assets [Roll Forward]    
Gross carrying amount $ 578,664  
Accumulated amortization (277,710)  
Net 300,954  
Acquisitions—current year 0  
Acquisitions—prior year 0  
Foreign exchange (9,166)  
Other (2) (1,250)  
Net change (10,416)  
Amortization (16,043)  
Foreign exchange 3,130  
Other (2) [1] 1,239  
Net change (11,674)  
Gross carrying amount 568,248  
Accumulated amortization (289,384)  
Net 278,864  
Revenue-generating contracts [Member] | Concerts [Member]    
Finite-lived Intangible Assets [Roll Forward]    
Impairment charge, definite-lived intangible assets   $ 10,100
Venue Management & Leaseholds    
Finite-lived Intangible Assets [Roll Forward]    
Gross carrying amount 147,956  
Accumulated amortization (51,924)  
Net 96,032  
Acquisitions—current year 0  
Acquisitions—prior year 0  
Foreign exchange (945)  
Other (2) 0  
Net change (945)  
Amortization (3,618)  
Foreign exchange 120  
Other (2) [1] 3  
Net change (3,495)  
Gross carrying amount 147,011  
Accumulated amortization (55,419)  
Net 91,592  
Trademarks and naming rights [Member]    
Finite-lived Intangible Assets [Roll Forward]    
Gross carrying amount 150,344  
Accumulated amortization (73,604)  
Net 76,740  
Acquisitions—current year 0  
Acquisitions—prior year 0  
Foreign exchange (1,356)  
Other (2) (7)  
Net change (1,363)  
Amortization (4,180)  
Foreign exchange 228  
Other (2) [1] 50  
Net change (3,902)  
Gross carrying amount 148,981  
Accumulated amortization (77,506)  
Net 71,475  
Technology [Member]    
Finite-lived Intangible Assets [Roll Forward]    
Gross carrying amount 72,283  
Accumulated amortization (45,799)  
Net 26,484  
Acquisitions—current year 9,782  
Acquisitions—prior year 0  
Foreign exchange (98)  
Other (2) (7,618)  
Net change 2,066  
Amortization (5,231)  
Foreign exchange 70  
Other (2) [1] 7,589  
Net change 2,428  
Gross carrying amount 74,349  
Accumulated amortization (43,371)  
Net 30,978  
Other intangible assets [Member]    
Finite-lived Intangible Assets [Roll Forward]    
Gross carrying amount [2] 17,413  
Accumulated amortization [2] (11,700)  
Net [2] 5,713  
Acquisitions—current year [2] 2,477  
Acquisitions—prior year [2] 0  
Foreign exchange [2] (8)  
Other (2) [2] 320  
Net change [2] 2,789  
Amortization [2] (1,160)  
Foreign exchange [2] 1  
Other (2) [1],[2] (91)  
Net change [2] (1,250)  
Gross carrying amount [2] 20,202  
Accumulated amortization [2] (12,950)  
Net [2] $ 7,252  
Noncompete Agreements    
Finite-lived Intangible Assets [Roll Forward]    
Weighted-average lives of definite-lived intangible assets 2 years  
[1] Other primarily includes netdowns of fully amortized or impaired assets.
[2] Other primarily includes intangible assets for non-compete agreements.