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Stockholders' Equity Stockholders' Equity
6 Months Ended
Jun. 30, 2019
Equity [Abstract]  
Stockholders' Equity
4.    Stockholders' Equity

Share Repurchases

For the six months ended June 30,2019, the Company repurchased 505,448 shares of the Company's common stock in the open market at an average price of $59.35 per share, for a total of $30.0 million. As of June 30, 2019, approximately $70.0 million remains available for repurchase under the previously announced $100.0 million share repurchase authorization (which expires at the end of 2019).