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Income Taxes - Additional Information (Details) - USD ($) $ in Millions | 1 Months Ended | 3 Months Ended |
--- | --- | --- | ---
Mar. 31, 2010 | Apr. 01, 2018 | Mar. 26, 2017 | Dec. 31, 2017
Income Tax Disclosure [Abstract] |  |  |  |
Federal annual utilization of NOL carryforwards limit, next five years | $ 27.0 |  |  |
Threshold period for change in allowed annual amount of NOL to be recognized | 5 years |  |  |
Federal annual utilization of NOL carryforwards limit, after year five | $ 11.6 |  |  |
Unrecognized tax benefits that if recognized would impact the effective tax rate for continuing operations |  |  |  | $ 14.0
Increase resulting from current period tax positions |  | $ 0.1 |  |
Unrecognized tax benefits from discontinued operations |  |  |  | $ 1.6
Expense for interest and penalties |  | 0.1 | $ 0.1 |
Liabilities for uncertain tax positions believed to be reasonably possible to expire within twelve months |  | $ 0.4 |  |

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- Definition Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (d)(3) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319 + Details
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- Definition Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32718-109319 + Details
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