Common Roll Ups Reported in Reports - US GAAP

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Line Roll Up Total Concept Roll Up Items Concept Count
1 us-gaap:AssetRetirementObligation us-gaap:AssetRetirementObligationCurrent 3
2 us-gaap:AssetRetirementObligation us-gaap:AssetRetirementObligationsNoncurrent 3
3 us-gaap:AssetRetirementObligation us-gaap:AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent 1
4 us-gaap:AssetRetirementObligation us-gaap:AccruedCappingClosurePostClosureAndEnvironmentalCosts 1
5 us-gaap:AssetRetirementObligation clh:UndiscountedClosureAndPostClosureLiabilities 1
6 us-gaap:AssetRetirementObligation clh:ReservesToBeProvidedOverRemainingSiteLives 1
7 us-gaap:AssetRetirementObligation clh:DiscountReserves 1

(Note that this is a work in progress!)