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Stockholders' Equity (Narrative) (Details) - $ / shares |  | 9 Months Ended | 13 Months Ended
--- | --- | --- | ---
Aug. 28, 2015 | Sep. 30, 2016 | Sep. 30, 2016
Equity, Class of Treasury Stock [Line Items] |  |  |
Shares authorized for repurchase | 5.00% |  |
Number of shares authorized for repurchase | 3,900,000 |  |
Expiration date |  | Sep. 30, 2016 |
Treasury Stock [Member] |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |
Repurchased common stock shares |  | 0 | 741,393
Shares repurchased price per share |  |  | $ 27.44

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- Definition Total cost of shares repurchased divided by the total number of shares repurchased. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
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