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Stock-Based Compensation and Awards - Employee Stock Purchase Plan (Narratives) (Details 7) - Employee Stock Purchase Plan - USD ($) | 12 Months Ended |
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Dec. 31, 2015 | May. 31, 2011
Employee Stock Purchase Plan |  |
Maximum employee salary to purchase shares (in shares) | $ 25,000 |
Maximum percentage of employee eligible pay to purchase shares | 10.00% |
Maximum number of shares available under the Plan |  | 1,000,000
Minimum |  |
Employee Stock Purchase Plan |  |
Purchase price as a percent of the fair market value | 85.00% |
Maximum |  |
Employee Stock Purchase Plan |  |
Purchase price as a percent of the fair market value | 100.00% |

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- Definition The highest percentage of annual salary that an employee is permitted to utilize with respect to the plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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