Share Repurchase Program	9 Months Ended
Sep. 30, 2018
Equity [Abstract]
Share Repurchase Program	Share Repurchase Program On February 12, 2015, the Company announced that its Board of Directors approved a share repurchase program authorizing the repurchase of up to an aggregate of $20 million of its common stock through open market and privately negotiated transactions over a two-year period. On November 2, 2016, the Board of Directors approved a two-year extension to the share repurchase program through February 28, 2019. On May 4, 2017, the Board of Directors authorized the repurchase of up to an additional $30.0 million of its common stock through open market and privately negotiated transactions over a two-year period ending May 31, 2019. The timing and amount of any share repurchases will be determined based on market conditions, share price and other factors, and the program may be discontinued or suspended at any time. Repurchases will be made in compliance with SEC rules and other legal requirements. During the nine months ended September 30, 2018, the Company repurchased 2,667,732 shares of its common stock for $25.6 million in the aggregate at an average cost of $9.60 per share under this program. During the three months ended September 30, 2018, the Company did not repurchase any shares of its common stock under this program. During the nine months ended September 30, 2017, the Company repurchased 1,028,654 shares of its common stock for $10.0 million in the aggregate at an average cost of $9.76 per share. During the three months ended September 30, 2017, the Company did not repurchase any shares of its common stock under this program. Shares repurchased under this program are recorded at acquisition cost, including related expenses.

Share Repurchase Program

On February 12, 2015, the Company announced that its Board of Directors approved a share repurchase program authorizing the repurchase of up to an aggregate of $20 million of its common stock through open market and privately negotiated transactions over a two-year period. On November 2, 2016, the Board of Directors approved a two-year extension to the share repurchase program through February 28, 2019. On May 4, 2017, the Board of Directors authorized the repurchase of up to an additional $30.0 million of its common stock through open market and privately negotiated transactions over a two-year period ending May 31, 2019. The timing and amount of any share repurchases will be determined based on market conditions, share price and other factors, and the program may be discontinued or suspended at any time. Repurchases will be made in compliance with SEC rules and other legal requirements.

During the nine months ended September 30, 2018, the Company repurchased 2,667,732 shares of its common stock for $25.6 million in the aggregate at an average cost of $9.60 per share under this program. During the three months ended September 30, 2018, the Company did not repurchase any shares of its common stock under this program. During the nine months ended September 30, 2017, the Company repurchased 1,028,654 shares of its common stock for $10.0 million in the aggregate at an average cost of $9.76 per share. During the three months ended September 30, 2017, the Company did not repurchase any shares of its common stock under this program. Shares repurchased under this program are recorded at acquisition cost, including related expenses.