Common Stock	12 Months Ended
Dec. 31, 2016
Common Stock, Number of Shares, Par Value and Other Disclosures [Abstract]
Common Stock	Common Stock There were no shares of common stock issued from treasury in 2016, 2015 or 2014. In 2016, 2015 and 2014, the Company acquired 550,994 shares, 1,352,596 shares and 220,794 shares, respectively, of the Company’s common stock at a cost of $20,520, $52,103 and $8,389, respectively. These amounts exclude shares reacquired to pay for the related income tax upon issuance of shares in accordance with the terms of the Company’s stockholder-approved equity compensation plans and the equity rights granted under those plans ("Reacquired Shares"). These Reacquired Shares were placed in treasury. In 2016, 2015 and 2014, 621,259 shares, 841,164 shares and 923,852 shares of common stock, respectively, were issued from authorized shares for the exercise of stock options, various other incentive awards and purchases by the Company's Employee Stock Purchase Plan.

Common Stock

There were no shares of common stock issued from treasury in 2016, 2015 or 2014.

In 2016, 2015 and 2014, the Company acquired 550,994 shares, 1,352,596 shares and 220,794 shares, respectively, of the Company’s common stock at a cost of $20,520, $52,103 and $8,389, respectively. These amounts exclude shares reacquired to pay for the related income tax upon issuance of shares in accordance with the terms of the Company’s stockholder-approved equity compensation plans and the equity rights granted under those plans ("Reacquired Shares"). These Reacquired Shares were placed in treasury.

In 2016, 2015 and 2014, 621,259 shares, 841,164 shares and 923,852 shares of common stock, respectively, were issued from authorized shares for the exercise of stock options, various other incentive awards and purchases by the Company's Employee Stock Purchase Plan.