Consolidated Statements of Net Proceeds From All Sources (Parenthetical) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2020 |
Dec. 31, 2019 |
Dec. 31, 2018 |
|
| Statement of Stockholders' Equity [Abstract] | |||
| Other comprehensive income (loss), defined benefit plan, transition asset (obligation), reclassification adjustment from AOCI, tax | $ (328) | $ (101) | $ (24) |
| Dividends paid - per Sub-share (in dollars per share) | $ 10.00 | $ 1.75 | $ 1.05 |
| Special dividends paid per sub-share certificate (in dollars per share) | $ 16.00 | $ 4.25 | $ 3.00 |
| X | ||||||||||
- Definition Amount of paid and unpaid special cash dividends declared per share for classes of stock, for example, but not limited to, common and preferred. No definition available.
|
| X | ||||||||||
- Definition The amount of dividends paid per subshare. No definition available.
|
| X | ||||||||||
- Definition Amount of tax expense (benefit) for reclassification adjustment from accumulated other comprehensive income (loss) for transition asset (obligation) of defined benefit plan. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- References No definition available.
|