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GOODWILL AND OTHER INTANGIBLE ASSETS - Finite-lived and Indefinite Lived Intangible Assets (Details) - USD ($) $ in Thousands | Jun. 30, 2021 | Dec. 31, 2020
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Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, cost | $ 574,428 | $ 605,136
Accumulated Amortization | 323,648 | 341,672
Finite-lived intangible assets, net | 250,780 | 263,464
Total permits and other intangible assets, Cost | 697,878 | 728,292
Total permits and other intangible assets, Net | 374,230 | 386,620
Trademarks and trade names |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |
Trademarks and trade names | 123,450 | 123,156
Permits |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, cost | 186,292 | 183,766
Accumulated Amortization | 99,143 | 95,033
Finite-lived intangible assets, net | 87,149 | 88,733
Customer and supplier relationships |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, cost | 366,913 | 382,083
Accumulated Amortization | 207,196 | 211,895
Finite-lived intangible assets, net | 159,717 | 170,188
Other intangible assets |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, cost | 21,223 | 39,287
Accumulated Amortization | 17,309 | 34,744
Finite-lived intangible assets, net | $ 3,914 | $ 4,543

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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