| Amount of income tax expense (benefit) for which accounting for tax effect for remeasurement of deferred tax from change in tax rate is incomplete pursuant to Tax Cuts and Jobs Act and no reasonable estimate is determined. | en-US | http://www.xbrl.org/2003/role/documentation | http://www.xbrl.org/2003/role/link |
| Tax Cuts and Jobs Act, Incomplete Accounting, Change in Tax Rate, Existing Income Tax Expense (Benefit) (Deprecated 2020-01-31) | en-US | http://www.xbrl.org/2003/role/label | http://www.xbrl.org/2003/role/link |
| Tax Cuts and Jobs Act, Incomplete Accounting, Change in Tax Rate, Existing Income Tax Expense (Benefit), Total (Deprecated 2020-01-31) | en-US | http://www.xbrl.org/2003/role/totalLabel | http://www.xbrl.org/2003/role/link |