​

​

Three Months Ended June 30, 

​

Six Months Ended June 30, 

​

2021

2020

2021

2020

Net (loss) income

​

$

(51,672)

​

$

(5,904)

​

$

(52,418)

​

$

60,076

Less portion allocated to nonvested shares

​

—

​

—

​

—

​

707

Net (loss) income allocated to common shares

​

$

(51,672)

​

$

(5,904)

​

$

(52,418)

​

$

59,369

Weighted average common shares outstanding

​

142,244

​

141,597

​

142,197

​

141,571

Basic and diluted (loss) earnings per common share

​

$

(0.36)

​

$

(0.04)

​

$

(0.37)

​

$

0.42

Shares excluded due to being anti-dilutive (weighted-average)

​

​

880

​

​

1,665

​

​

899

​

​

—