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Net Income Per Share (Tables)
 6 Months Ended
Jun. 30, 2022
Earnings Per Share [Abstract]  
Basic and Diluted Net Income Per Share
The basic and diluted net income per share calculations for the three and six months ended June 30, 2022 and 2021 were as follows:
Three Months Ended June 30,Six Months Ended June 30,
2022202120222021
(In thousands, except per share data)
Net income$9,069 $20,424 $17,282 $34,551 
Weighted-average shares outstanding – basic44,219 43,262 44,234 43,113 
Effect of dilutive securities from stock award plans1,142 2,066 1,421 2,040 
Effect of convertible senior notes899 1,778 1,466 1,612 
Weighted-average shares outstanding – diluted46,260 47,106 47,121 46,765 
Net income per share – basic$0.21 $0.47 $0.39 $0.80 
Net income per share – diluted$0.20 $0.43 $0.37 $0.74 
Anti-dilutive weighted-average shares related to stock award plans865 199 473 290 
Anti-dilutive weighted-average shares related to convertible senior notes and warrants5,908 5,908 5,908 5,908