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Employee Benefit Plan (Details)
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12 Months Ended |
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Dec. 31, 2014
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| Compensation and Retirement Disclosure [Abstract] | |
| Maximum deferral of pre-tax eligible compensation per terms of plan | 100.00%ent_DefinedContributionPlanEmployeePercentageofGrossPay |
| X | ||||||||||
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- Definition
Maximum percentage of salary, per terms of the plan up to specified limit, the employee may contribute No definition available.
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| X | ||||||||||
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- Details
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