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Share Incentive and Other Compensation - Employee 401 (k) Plan (Details) | 3 Months Ended
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Mar. 31, 2018 USD ($)
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Employer matching contribution | 50.00%
Maximum annual contribution per employee | 6.00%
Maximum employee annual salary contribution | 15.00%
Maximum employee annual salary contribution amount | $ 18,000

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- Definition Defined Contribution Plan, Maximum employee annual salary contribution amount + References No definition available. + Details
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Balance Type: | debit
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- Definition Defined Contribution Plan, Maximum employee annual salary contribution percentage + References No definition available. + Details
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Balance Type: | na
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- Definition Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. + References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
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- Definition Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. + References No definition available. + Details
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- References No definition available. + Details
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