Annual report pursuant to Section 13 and 15(d)

Quarterly Results of Operations (Unaudited) (Notes)

v3.20.4
Quarterly Results of Operations (Unaudited) (Notes)
 12 Months Ended
Dec. 31, 2020
Quarterly Results of Operations (Unaudited) [Abstract]  
Quarterly Financial Information [Text Block] Quarterly Results of Operations (Unaudited)
The following is a summary of the quarterly results of operations for the years ended December 31, 2020 and 2019: 
2020
March 31 June 30 September 30 December 31
Operating revenue $ 305,557  $ 281,678  $ 331,997  $ 350,341 
   Net income from continuing operations $ 11,417  $ 9,225  $ 16,992  $ 15,133 
   Loss from discontinued operation, net of tax (3,042) (6,071) (345) (19,576)
Net income $ 8,375  $ 3,154  $ 16,647  $ (4,443)
Basic net income (loss) per share:
   Continuing operations $ 0.41  $ 0.33  $ 0.61  $ 0.55 
   Discontinued operation (0.11) (0.22) (0.01) (0.72)
Net income per share $ 0.30  $ 0.11  $ 0.60  $ (0.17)
Diluted net income (loss) per share:
   Continuing operations $ 0.41  $ 0.33  $ 0.61  $ 0.55 
   Discontinued operation (0.11) (0.22) (0.01) (0.72)
Net income per share $ 0.30  $ 0.11  $ 0.60  $ (0.17)
2019
March 31 June 30 September 30 December 31
Operating revenue $ 278,961  $ 302,887  $ 313,683  $ 319,656 
   Net income from continuing operations $ 17,688  $ 21,244  $ 21,054  $ 22,336 
   Income from discontinued operation, net of tax 719  1,086  1,141  1,832 
Net income $ 18,407  $ 22,330  $ 22,195  $ 24,168 
Basic net income per share:
   Continuing operations $ 0.61  $ 0.74  $ 0.74  $ 0.79 
   Discontinued operation 0.03  0.04  0.04  0.07 
Net income per share $ 0.64  $ 0.78  $ 0.78  $ 0.86 
Diluted net income per share:
   Continuing operations $ 0.61  $ 0.74  $ 0.74  $ 0.79 
   Discontinued operation 0.03  0.04  0.04  0.07 
Net income per share 1
$ 0.64  $ 0.78  $ 0.78  $ 0.85 
1 Rounding may impact summation of amounts.