| Standard label: | Purchase Commitment, Excluding Long-term Commitment [Table] |
| Name: | us-gaap:PurchaseCommitmentExcludingLongtermCommitmentTable |
| Documentation: | Summarization of information required or determined to be disclosed about arrangements in which the entity has agreed to expend funds to procure goods or services from one or more suppliers. Such disclosure may include identification of the goods or services to be purchased, identity of the seller, pricing, effects on pricing for failing to reach minimum quantities required to be purchased (such as penalties), cancellation rights, and termination provisions. |
| Object type: | cm:Table |
| Data type: | Text/String (xbrli:stringItemType) |
| Period type: | For Period (duration) |
| Balance type: | (no balance type) |
| Abstract: | true |
| Workiva Wdesk Taxonomy Analyzer: | us-gaap:PurchaseCommitmentExcludingLongtermCommitmentTable |
| Label | Role | Language |
| Purchase Commitment, Excluding Long-term Commitment [Table] | http://www.xbrl.org/2003/role/label | en-US |
| Reference | Role | Topic |
| FASB Accounting Standards Codification 210 10 S99 1 (SX 210.5-02(25)) | http://fasb.org/us-gaap/role/ref/legacyRef | 210 |
| FASB Accounting Standards Codification 942 210 S99 1 (SX 210.9-03(17)) | http://fasb.org/us-gaap/role/ref/legacyRef | 942 |
| FASB Accounting Standards Codification 944 210 S99 1 (SX 210.7-03(a)(19)) | http://fasb.org/us-gaap/role/ref/legacyRef | 944 |