Annual report pursuant to Section 13 and 15(d)

Consolidated Statements of Net Proceeds From All Sources

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Consolidated Statements of Net Proceeds From All Sources - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Dec. 31, 2019
Mar. 31, 2019
Dec. 31, 2018
Mar. 31, 2018
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Balances   $ 244,691   $ 105,098 $ 244,691 $ 105,098 $ 52,659
Net income $ 69,122 $ 139,998 $ 62,680 $ 43,791 318,728 209,736 97,231
Periodic pension costs, net of income taxes         (383) (94) 156
Repurchase and retirement of Sub-share Certificates of Proprietary Interest         (4,353) (38,397) (34,267)
Regular dividends paid         (13,576) (8,206) (2,769)
Special dividends paid         (32,970) (23,446) (7,912)
Balances $ 512,137   $ 244,691   $ 512,137 $ 244,691 $ 105,098
Sub-share Certificates of Proprietary Interest              
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Balances (in shares)   7,762,414   7,821,599 7,762,414 7,821,599 7,927,314
Repurchase and retirement of Sub-share Certificates in Certificates of Proprietary Interest (in shares)         (6,258) (59,185) (105,715)
Balances (in shares) 7,756,156   7,762,414   7,756,156 7,762,414 7,821,599
Accumulated Other Comprehensive Income (Loss)              
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Balances   $ (1,078)   $ (804) $ (1,078) $ (804) $ (960)
Periodic pension costs, net of income taxes         (383) (274) 156
Repurchase and retirement of Sub-share Certificates of Proprietary Interest           0  
Balances $ (1,461)   $ (1,078)   (1,461) (1,078) (804)
Net Proceeds From All Sources              
Increase (Decrease) in Stockholders' Equity [Roll Forward]              
Balances   $ 245,769   $ 105,902 245,769 105,902 53,619
Net income         318,728 209,736 97,231
Periodic pension costs, net of income taxes         0 180  
Repurchase and retirement of Sub-share Certificates of Proprietary Interest         (4,353) (38,397) (34,267)
Regular dividends paid         (13,576) (8,206) (2,769)
Special dividends paid         (32,970) (23,446) (7,912)
Balances $ 513,598   $ 245,769   $ 513,598 $ 245,769 $ 105,902