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Supplemental Quarterly Information (Unaudited)
 12 Months Ended
Dec. 31, 2021
Quarterly Financial Information Disclosure [Abstract]  
Supplemental Quarterly Information (Unaudited) SUPPLEMENTAL QUARTERLY INFORMATION (UNAUDITED)
The following table represents the significant items for the results of operations on a quarterly basis for the years ended December 31, 2021 and 2020:
Three Months
Ended
March 31,
2021		Three Months
Ended
June 30,
2021		Three Months
Ended
September 30,
2021		Three Months
Ended
December 31,
2021
Revenues $539,744 $816,220 $1,006,342 $881,744 
Gross profit73,802 123,513 88,908 83,670 
Selling, general, and administrative expenses including research and development expense31,177 35,015 34,354 39,965 
Gain on disposal of property, plant and equipment— (39)— (1,423)
Impairment of property, plant and equipment822 916 3,498 2,123 
Income from operations41,803 87,621 51,056 43,005 
Other expense, net(948)(5,855)(7,937)(9,405)
Net income $39,222 $79,516 $42,467 $52,614 
Net income available to common stockholders$38,583 $78,787 $42,133 $52,212 
Basic net income per share available to common stockholders:
Net income per share$0.95 $1.64 $0.84 $1.04 
Diluted net income per share available to common stockholders:
Net income per share$0.88 $1.62 $0.83 $1.03 
Three Months
Ended
March 31,
2020		Three Months
Ended
June 30,
2020		Three Months
Ended
September 30,
2020		Three Months
Ended
December 31,
2020
Revenues $472,957 $543,905 $572,358 $547,928 
Gross profit105,561 22,556 73,956 66,281 
Selling, general, and administrative expenses including research and development expense27,485 28,427 31,059 32,331 
Gain on disposal of property, plant and equipment— (187)— (18)
Impairment of property, plant and equipment— — 19,256 3,148 
Income (loss) from operations78,076 (5,684)23,641 30,820 
Other income (expense), net(2,078)5,628 68 (1,729)
Net income (loss)$74,667 $(1,685)$22,663 $27,168 
Net income (loss) available to common stockholders$73,158 $(1,685)$22,223 $26,685 
Basic net income (loss) per share available to common stockholders:
Net income (loss) per share$1.88 $(0.04)$0.57 $0.68 
Diluted net income (loss) per share available to common stockholders:
Net income (loss) per share$1.67 $(0.04)$0.51 $0.60