0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - UNAUDITED CONSOLIDATED STATEMENTS OF OPERATIONS link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - UNAUDITED CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - UNAUDITED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - UNAUDITED CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - UNAUDITED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 9952158 - Statement - UNAUDITED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (PARENTHETICAL) link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - BASIS OF PRESENTATION link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - REVENUES link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - BUSINESS COMBINATIONS link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - INVENTORIES AND SUPPLIES link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - PROPERTY, PLANT AND EQUIPMENT link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - CLOSURE AND POST-CLOSURE LIABILITIES link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - REMEDIAL LIABILITIES link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - FINANCING ARRANGEMENTS link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - EARNINGS PER SHARE link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE LOSS link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - STOCK-BASED COMPENSATION link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - COMMITMENTS AND CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 9952174 - Disclosure - SEGMENT REPORTING link:presentationLink link:calculationLink link:definitionLink 9954471 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Policies) link:presentationLink link:calculationLink link:definitionLink 9954472 - Disclosure - REVENUES (Tables) link:presentationLink link:calculationLink link:definitionLink 9954473 - Disclosure - BUSINESS COMBINATIONS (Tables) link:presentationLink link:calculationLink link:definitionLink 9954474 - Disclosure - INVENTORIES AND SUPPLIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9954475 - Disclosure - PROPERTY, PLANT AND EQUIPMENT (Tables) link:presentationLink link:calculationLink link:definitionLink 9954476 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS (Tables) link:presentationLink link:calculationLink link:definitionLink 9954477 - Disclosure - ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9954478 - Disclosure - CLOSURE AND POST-CLOSURE LIABILITIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9954479 - Disclosure - REMEDIAL LIABILITIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9954480 - Disclosure - FINANCING ARRANGEMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9954481 - Disclosure - EARNINGS PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 9954482 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE LOSS (Tables) link:presentationLink link:calculationLink link:definitionLink 9954483 - Disclosure - STOCK-BASED COMPENSATION (Tables) link:presentationLink link:calculationLink link:definitionLink 9954484 - Disclosure - SEGMENT REPORTING (Tables) link:presentationLink link:calculationLink link:definitionLink 9954485 - Disclosure - REVENUES - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9954486 - Disclosure - REVENUES - Disaggregation of Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9954487 - Disclosure - REVENUES - Contract Balances (Details) link:presentationLink link:calculationLink link:definitionLink 9954488 - Disclosure - BUSINESS COMBINATIONS - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9954489 - Disclosure - BUSINESS COMBINATIONS - Assets Acquired and Liabilities Assumed (Details) link:presentationLink link:calculationLink link:definitionLink 9954490 - Disclosure - INVENTORIES AND SUPPLIES (Details) link:presentationLink link:calculationLink link:definitionLink 9954491 - Disclosure - PROPERTY, PLANT AND EQUIPMENT - Schedule of Property, Plant and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 9954492 - Disclosure - PROPERTY, PLANT AND EQUIPMENT - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9954493 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Changes to Goodwill (Details) link:presentationLink link:calculationLink link:definitionLink 9954494 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Finite-lived and Indefinite Lived Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9954494 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Finite-lived and Indefinite Lived Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9954495 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9954496 - Disclosure - GOODWILL AND OTHER INTANGIBLE ASSETS - Expected Future Amortization (Details) link:presentationLink link:calculationLink link:definitionLink 9954497 - Disclosure - ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Details) link:presentationLink link:calculationLink link:definitionLink 9954498 - Disclosure - CLOSURE AND POST-CLOSURE LIABILITIES - Changes in Post-Closure Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9954499 - Disclosure - REMEDIAL LIABILITIES - Changes to Remedial Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9954500 - Disclosure - REMEDIAL LIABILITIES - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9954501 - Disclosure - FINANCING ARRANGEMENTS - Summary of Financing Arrangements (Details) link:presentationLink link:calculationLink link:definitionLink 9954502 - Disclosure - FINANCING ARRANGEMENTS - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9954503 - Disclosure - EARNINGS PER SHARE - Reconciliation of Basic and Diluted Earnings Per Share Computations (Details) link:presentationLink link:calculationLink link:definitionLink 9954504 - Disclosure - EARNINGS PER SHARE - Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9954505 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE LOSS - Changes in Accumulated Other Comprehensive Loss by Component (Details) link:presentationLink link:calculationLink link:definitionLink 9954506 - Disclosure - ACCUMULATED OTHER COMPREHENSIVE LOSS - Reclassified Out of Accumulated Other Comprehensive Loss (Details) link:presentationLink link:calculationLink link:definitionLink 9954507 - Disclosure - STOCK-BASED COMPENSATION - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9954508 - Disclosure - STOCK-BASED COMPENSATION - Restricted Stock Awards (Details) link:presentationLink link:calculationLink link:definitionLink 9954509 - Disclosure - STOCK-BASED COMPENSATION - Performance Stock Awards (Details) link:presentationLink link:calculationLink link:definitionLink 9954510 - Disclosure - STOCK-BASED COMPENSATION - Employee Stock Purchase Plan (Details) link:presentationLink link:calculationLink link:definitionLink 9954511 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details) link:presentationLink link:calculationLink link:definitionLink 9954512 - Disclosure - SEGMENT REPORTING - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954513 - Disclosure - SEGMENT REPORTING - Reconciliation of Third Party Revenues to Direct Revenues (Details) link:presentationLink link:calculationLink link:definitionLink 9954514 - Disclosure - SEGMENT REPORTING - Reconciliation to Consolidated Statements of Income to Adjusted EBITDA (Details) link:presentationLink link:calculationLink link:definitionLink