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GOODWILL AND OTHER INTANGIBLE ASSETS - Amortizable Other Intangible Assets (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
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Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |
Cost | $ 603,924 | $ 624,262
Accumulated Amortization | 319,140 | 328,130
Net | 284,784 | 296,132
Total permits and other intangible assets, Cost | 726,021 | 747,196
Total permits and other intangible assets, Net | 406,881 | 419,066
Trademarks and trade names |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |
Trademarks and trade names | 122,097 | 122,934
Permits |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |
Cost | 181,095 | 184,235
Accumulated Amortization | 87,790 | 87,228
Net | 93,305 | 97,007
Customer and supplier relationships |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |
Cost | 386,197 | 401,696
Accumulated Amortization | 199,915 | 207,884
Net | 186,282 | 193,812
Other intangible assets |  |
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items] |  |
Cost | 36,632 | 38,331
Accumulated Amortization | 31,435 | 33,018
Net | $ 5,197 | $ 5,313

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