For the year ended December 31,

2021

2020

2019

(in thousands, except per share amounts)

Net income (loss)

$

26,038

$

(8,391)

$

(78,733)

Net income (loss) per common share:

Basic

$

0.53

$

(0.17)

$

(1.66)

Diluted

$

0.49

$

(0.17)

$

(1.66)

Basic weighted average shares outstanding

49,073

48,362

47,482

Effect of potentially dilutive share-based awards

1,090

—

Dilutive effect of convertible notes

3,480

—

Diluted weighted average shares outstanding

53,643

48,362

47,482

Common share equivalents excluded from the diluted weighted average shares outstanding since the Company incurred a net loss and their effect would be antidilutive

—

947

531

Potentially dilutive shares excluded from the diluted calculation as their effect would be antidilutive

456

923

1,689

Maximum potential shares to be issued for settlement of the 2023, 2025, and 2027 Notes excluded from the diluted calculation as their effect would be antidilutive due to a net loss or the fact that the conversion value of the Notes did not exceed their principal amount

8,421

17,753

8,618