| Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings, Description (Deprecated 2019-01-31) | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Description of where the gains or losses, arising from liabilities measured at fair value on a recurring basis using unobservable inputs (Level 3), are included in earnings or the statement of financial position. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |