Stockholders' Equity	3 Months Ended
Mar. 31, 2021
Equity [Abstract]
Stockholders' Equity	11. Stockholders’ Equity Common Stock Repurchase Programs On November 7, 2018, the Company announced a program (the “November 2018 Stock Repurchase Program”) to repurchase shares up to an aggregate amount of $25.0 million whereby the Company was authorized to repurchase the Company’s common stock from time to time on the open market or in privately negotiated transactions at prices and in a manner that may be determined by management. The Company repurchased 736,760, 411,849 and 243,425 shares at an aggregate purchase price of $14.8 million, $7.1 million and $3.1 million and an average share price of $20.10, $17.14 and $12.82 during the years ended December 31, 2020, 2019, and 2018, respectively, under the November 2018 Stock Repurchase Program. We terminated this repurchase program in May 2020. In May 2020, we announced that our Board had authorized a $25.0 million stock repurchase program (the “May 2020 Repurchase Program”) whereby we are authorized to repurchase our common stock from time to time on the open market or in privately negotiated transactions at prices and in the manner that may be determined by management. No amounts were repurchased under this plan for the three months ended March 31, 2021. Repurchased shares are recorded under the cost method and are reflected as treasury stock in the accompanying Consolidated Balance Sheets. Reserved Common Stock As of March 31, 2021, the Company has reserved 1,750,336 shares of common stock for use in settling outstanding options and unvested restricted stock units that have not been issued, as well as future awards available for grant under the 2007 and 2017 Plans and 4,000,186 shares issuable upon conversion of the Notes.

Stockholders' Equity

3 Months Ended

Mar. 31, 2021

11. Stockholders’ Equity

Common Stock Repurchase Programs

On November 7, 2018, the Company announced a program (the “November 2018 Stock Repurchase Program”) to repurchase shares up to an aggregate amount of $25.0 million whereby the Company was authorized to repurchase the Company’s common stock from time to time on the open market or in privately negotiated transactions at prices and in a manner that may be determined by management. The Company repurchased 736,760, 411,849 and 243,425 shares at an aggregate purchase price of $14.8 million, $7.1 million and $3.1 million and an average share price of $20.10, $17.14 and $12.82 during the years ended December 31, 2020, 2019, and 2018, respectively, under the November 2018 Stock Repurchase Program. We terminated this repurchase program in May 2020.

In May 2020, we announced that our Board had authorized a $25.0 million stock repurchase program (the “May 2020 Repurchase Program”) whereby we are authorized to repurchase our common stock from time to time on the open market or in privately negotiated transactions at prices and in the manner that may be determined by management. No amounts were repurchased under this plan for the three months ended March 31, 2021.

Repurchased shares are recorded under the cost method and are reflected as treasury stock in the accompanying Consolidated Balance Sheets.

Reserved Common Stock

As of March 31, 2021, the Company has reserved 1,750,336 shares of common stock for use in settling outstanding options and unvested restricted stock units that have not been issued, as well as future awards available for grant under the 2007 and 2017 Plans and 4,000,186 shares issuable upon conversion of the Notes.