Subsequent Events (Details) - President, Chief Executive Officer - Subsequent Event	Apr. 05, 2019 USD ($)
Subsequent Event [Line Items]
Salary	$ 700,000
Sign on bonus	$ 500,000
Short-Term Incentive Plan
Subsequent Event [Line Items]
Target allocation	100.00%
Minimum \| Long-Term Incentive Plan
Subsequent Event [Line Items]
Target value	$ 2,000,000
Performance Based Restricted Stock Units \| Long-Term Incentive Plan
Subsequent Event [Line Items]
Investment targets	50.00%
Time Vesting Restricted Stock Units \| Long-Term Incentive Plan
Subsequent Event [Line Items]
Investment targets	50.00%
Sign On Equity Grant
Subsequent Event [Line Items]
Target value	$ 3,000,000
Investment targets	50.00%
Target shares earned, if target met	100.00%
Target 1 \| Sign On Equity Grant
Subsequent Event [Line Items]
Relative TSR target	55.00%
Target shares earned, if target met	100.00%
Target 1 \| Sign On Equity Grant \| Maximum
Subsequent Event [Line Items]
Relative TSR target	80.00%
Target shares earned, if target met	200.00%
Target 2 \| Sign On Equity Grant
Subsequent Event [Line Items]
Relative TSR target	25.00%

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Carrying value as of the balance sheet date of obligations incurred and payable for incentive compensation awarded to employees and directors or earned by them based on the terms of one or more relevant arrangements.

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Percentage of investment to total investment within defined benefit plan asset category.

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Amount of expense for salary and wage arising from service rendered by officer. Excludes allocated cost, labor-related nonsalary expense, and direct and overhead labor cost included in cost of good and service sold.

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