IndexTrade and Other Accounts Receivable, Unbilled Receivables, Policy [Policy Text Block]
| Name | TradeAndOtherAccountsReceivableUnbilledReceivablesPolicy |
|---|---|
| Namespace | http://fasb.org/us-gaap/2020-01-31 |
| Prefix | us-gaap |
| Data type | nonnum:textBlockItemType |
| Period type | duration |
| Substitution Group | xbrli:item |
| Balance | None |
| Nillable | True |
| Abstract | False |
Labels
| Text | Lang | Role | Container role |
|---|---|---|---|
| Trade and Other Accounts Receivable, Unbilled Receivables, Policy [Policy Text Block] | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Disclosure of accounting policy for treatment of receivables that are billable but have not been billed as of the balance sheet date. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
References
| Name | Value | Role |
|---|---|---|
| SourceName | Financial Instruments-Credit Losses | http://fasb.org/srt/role/changeNote/changeNote |
| TaxonomyVersion | 2019 | http://fasb.org/srt/role/changeNote/changeNote |
| ChangeDate | 2018-09 | http://fasb.org/srt/role/changeNote/changeNote |
| ModifiedReferences | true | http://fasb.org/srt/role/changeNote/changeNote |
| Source_ASU_Number | 2016-13 | http://fasb.org/srt/role/changeNote/changeNote |
| Publisher | FASB | http://www.xbrl.org/2003/role/disclosureRef |
| Name | Accounting Standards Codification | http://www.xbrl.org/2003/role/disclosureRef |
| Topic | 310 | http://www.xbrl.org/2003/role/disclosureRef |
| URI | http://asc.fasb.org/topic&trid=2196771 | http://www.xbrl.org/2003/role/disclosureRef |
Related Parent Concepts
| Name | Relation Type | Role | |
|---|---|---|---|
 | us-gaap:PolicyTextBlockAbstract | parent-child | http://fasb.org/us-gaap/role/disclosure/ComprehensiveTextBlockList |
| us-gaap:TradeAndOtherAccountsReceivablePolicy | parent-child | http://fasb.org/us-gaap/role/disclosure/AccountingPolicies |