| Line | Roll Up Total Concept | Roll Up Items Concept | Count |
|---|---|---|---|
| 1 | clh:DeferredTaxLiabilitiesNetBeforeValuationAllowance | us-gaap:DeferredIncomeTaxLiabilities | 1 |
| 2 | clh:DeferredTaxLiabilitiesNetBeforeValuationAllowance | us-gaap:DeferredTaxAssetsNet | 1 |
(Note that this is a work in progress!)