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Income Taxes - Additional Information (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2018 | Feb. 03, 2018 | Dec. 31, 2017 | Jan. 28, 2017 | Jan. 30, 2016
U.S. Federal statutory rate |  | 33.70% | 35.00% | 35.00% | 35.00%
Discrete net tax expense |  | $ 2,153 |  |  |
Tax expense |  | 2,600 |  |  |
Tax benefit |  | 447 |  |  |
Unrecognized tax benefits |  | 0 |  |  |
Accrued interest and penalties |  | $ 95 |  |  |
Scenario Forecast |  |  |  |  |
U.S. Federal statutory rate | 21.00% |  |  |  |

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- Definition Amount of reasonable estimate for income tax benefit for remeasurement of deferred tax liability from change in tax rate pursuant to Tax Cuts and Jobs Act of 2017 for which accounting for tax effect is incomplete. + References No definition available. + Details
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- Definition Amount of reasonable estimate for income tax expense (benefit) for remeasurement of deferred tax from change in tax rate pursuant to Tax Cuts and Jobs Act of 2017 for which accounting for tax effect is incomplete. + References No definition available. + Details
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- Definition Percentage of domestic federal statutory tax rate applicable to pretax income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I) -URI http://asc.fasb.org/extlink&oid=34349781&loc=d3e330036-122817 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319 + Details
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