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GOODWILL AND OTHER INTANGIBLE ASSETS - Amortizable Other Intangible Assets (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
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Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, cost | $ 609,493 | $ 624,262
Accumulated Amortization | 339,759 | 328,130
Finite-lived intangible assets, net | 269,734 | 296,132
Total permits and other intangible assets, Cost | 732,160 | 747,196
Total permits and other intangible assets, Net | 392,401 | 419,066
Trademarks and trade names |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |
Trademarks and trade names | 122,667 | 122,934
Permits |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, cost | 182,478 | 184,235
Accumulated Amortization | 92,725 | 87,228
Finite-lived intangible assets, net | 89,753 | 97,007
Customer and supplier relationships |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, cost | 388,862 | 401,696
Accumulated Amortization | 213,700 | 207,884
Finite-lived intangible assets, net | 175,162 | 193,812
Other intangible assets |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |
Finite-lived intangible assets, cost | 38,153 | 38,331
Accumulated Amortization | 33,334 | 33,018
Finite-lived intangible assets, net | $ 4,819 | $ 5,313

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