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Selected Quarterly Financial Data (Unaudited) (Tables)
12 Months Ended
Dec. 31, 2020
Quarterly Financial Information Disclosure [Abstract]  
Schedule of selected quarterly financial data
The following table summarizes quarterly financial data for the years ended December 31, 2020 and 2019:
 2020
 First
Quarter
Second
Quarter
Third
Quarter
Fourth
Quarter
(In thousands)
Revenues$299,338 $186,301 $136,176 $244,727 
(Loss) income from operations(480,087)(555,750)(346,400)19,632 
Income tax expense7,290 — — — 
Net loss(517,538)(561,068)(380,963)(165,564)
Loss per share:
Basic$(3.24)$(3.51)$(2.37)$(1.03)
Diluted$(3.24)$(3.51)$(2.37)$(1.03)
 2019
 First
Quarter
Second
Quarter
Third
Quarter
Fourth
Quarter
(In thousands)
Revenues$372,462 $512,451 $341,745 $336,468 
(Loss) income from operations93,011 218,456 (570,955)(1,444,205)
Income tax (benefit) expense— (179,331)(144,047)315,815 
Net income (loss)62,242 234,956 (484,802)(1,814,754)
Income (loss) per share:
Basic$0.38 $1.47 $(3.04)$(11.36)
Diluted$0.38 $1.47 $(3.04)$(11.36)