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Stock Repurchases | 12 Months Ended
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Dec. 31, 2017
Stock Repurchases [Abstract] |
Stock Repurchases | 12. Stock Repurchases In 2017, 2016, and 2015 the Company repurchased shares of its common stock. Details of these purchases are as follows:
Period |  | Total Number of Shares Purchased |  |  | Average Price Paid per Share |  |  | Total Number of Shares Purchased as Part of Publicly Announced Program |  |  | Maximum Dollar Value of Shares that May Yet Be Purchased Under the Program |
First Quarter 2015 |  |  | 82,100 |  |  | $ | 34.57 |  |  |  | 82,100 |  |  |  |  |
Fourth Quarter 2016 |  |  | 283,343 |  |  | $ | 49.43 |  |  |  | 283,343 |  |  |  |  |
First Quarter 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
January 29 to February 25 |  |  | 900,997 |  |  | $ | 49.70 |  |  |  | 900,997 |  |  |  |  |
February 26 to April 1 |  |  | 173,288 |  |  | $ | 49.92 |  |  |  | 173,288 |  |  |  |  |
Third Quarter 2017 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
July 30 to August 26 |  |  | 4,490 |  |  | $ | 47.92 |  |  |  | 4,490 |  |  |  |  |
August 27 to September 30 |  |  | 240,933 |  |  | $ | 46.30 |  |  |  | 240,933 |  |  |  |  |
Total |  |  | 1,685,151 |  |  | $ | 48.45 |  |  |  | 1,685,151 |  |  | $ | 30,710,000 |
All of these purchases were made with cash held by the Company and no debt was incurred. At December 31, 2017, approximately $31 million remained authorized for share repurchases.

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- Definition Stock Repurchases [Abstract] + References No definition available. + Details
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- Definition The entire disclosure for treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -URI http://asc.fasb.org/subtopic&trid=2208821 + Details
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