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Net Income Per Share (Tables)
9 Months Ended
Sep. 30, 2020
Earnings Per Share [Abstract]  
Basic and Diluted Net Income (Loss) Per Share
The basic and diluted net income per share calculations for the three and nine months ended September 30, 2020 and 2019 were as follows:
Three Months Ended September 30,Nine Months Ended September 30,
2020201920202019
(In thousands, except per share data)
Net income$8,805 $19,983 $15,817 $39,243 
Weighted-average shares outstanding - basic42,802 41,771 42,606 41,283 
Effect of dilutive securities from stock award plans889 1,281 1,045 1,513 
Effect of dilutive convertible senior notes and warrants— — — — 
Weighted-average shares outstanding - diluted43,691 43,052 43,651 42,796 
Net income per share - basic$0.21 $0.48 $0.37 $0.95 
Net income per share - diluted$0.20 $0.46 $0.36 $0.92 
Anti-dilutive weighted-average shares related to stock award plans2,328 1,060 2,076 832 
Anti-dilutive weighted-average shares related to convertible senior notes and warrants11,816 — 11,816 —