Three months ended June 30,

Six months ended June 30,

2021

2020

2021

2020

(in thousands, except per share amounts)

Net income (loss)

$

6,348

$

(8,302)

$

8,842

$

(8,869)

Net income (loss) per common share:

Basic

$

0.13

$

(0.17)

$

0.18

$

(0.18)

Diluted

$

0.12

$

(0.17)

$

0.17

$

(0.18)

Basic weighted average shares outstanding

48,743

48,109

48,758

48,147

Dilutive effect of share-based awards

1,707

—

1,553

Dilutive effect of the 2027 Notes

3,492

—

3,228

—

Diluted weighted average shares outstanding

53,942

48,109

53,539

48,147

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

N/A

712

N/A

671

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

449

1,194

452

1,132

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

8,811

15,354

8,811

15,354