Discontinued Operations Results of Discontinued Operations (Details) - Discontinued Operations, Disposed of by Sale [Member] - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal Group, Including Discontinued Operation, Revenue	$ 48,420	$ 144,880
Disposal Group, Including Discontinued Operation, Costs of Goods Sold	(36,170)	(108,040)
Disposal Group, Including Discontinued Operation, Gross Profit (Loss)	12,250	36,840
Disposal Group, Including Discontinued Operations, SG&A	(7,130)	(21,620)
Disposal Group, Including Discontinued Operation, Operating Income (Loss)	5,120	15,220
Disposal Group, Including Discontinued Operation, Other Expense	10	30
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax	5,130	15,250
Discontinued Operation, Tax Effect of Discontinued Operation	(1,260)	(3,540)
Income from discontinued operations	$ 3,870	$ 11,710

Disposal Group, Including Discontinued Operations, Other Expense, net

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Disposal Group, Including Discontinued Operations, Selling, General and Administrative Expenses

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Amount before tax of income (loss) from a discontinued operation. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Amount of tax expense (benefit) related to a discontinued operation. Includes, but is not limited to, tax expense (benefit) related to income (loss) from operations during the phase-out period, tax expense (benefit) related to gain (loss) on disposal, tax expense (benefit) related to gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and tax expense (benefit) related to adjustments of a prior period gain (loss) on disposal.

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Amount of gross profit attributable to disposal group, including, but not limited to, discontinued operation.

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Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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