Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Balance Sheets (Parenthetical)

v3.19.1
Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares
Mar. 31, 2019
Dec. 31, 2018
Statement of Financial Position [Abstract]    
Preferred stock, par value (in dollars per share) $ 0.005 $ 0.005
Preferred stock, shares authorized (in shares) 50,000,000 50,000,000
Common stock, par value (in dollars per share) $ 0.005 $ 0.005
Common stock, shares authorized (in shares) 500,000,000 500,000,000
Common stock, shares issued (in shares) 61,934,458 61,238,898
Common stock, shares outstanding (in shares) 48,656,904 48,121,800
Treasury stock (in shares) 13,277,554 13,117,098