Aggregate dividends declared during the period for each share of common stock outstanding.

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- Definition

Date the declared dividend will be paid, in YYYY-MM-DD format.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4304-108586

+ Details

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- Definition

Amount of paid and unpaid cash, stock, and paid-in-kind (PIK) dividends declared, for example, but not limited to, common and preferred stock.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 405
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6957935&loc=d3e64057-112817

+ Details

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- Definition

Date the dividend to be paid was declared, in YYYY-MM-DD format.

+ References

+ Details

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- Definition

Date the holder must own the stock to be entitled to the dividend, in YYYY-MM-DD format.

+ References

No definition available.

+ Details

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- Definition

Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event.

+ References

No definition available.

+ Details

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- Details

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- Details

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Subsequent Events (Narrative) (Details) - USD ($)					12 Months Ended
Subsequent Events (Narrative) (Details) - USD ($)	Mar. 01, 2022	Dec. 14, 2021	Sep. 28, 2021	Jun. 18, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Subsequent Event [Line Items]
Dividends Payable, Date Declared		Dec. 14, 2021	Sep. 28, 2021	Jun. 18, 2021
Dividends declared per share					$ 0.98	$ 0.32	$ 1.20
Dividends		$ 3,990,000	$ 960,000	$ 960,000
Dividends Payable, Date to be Paid		Jan. 14, 2022	Oct. 22, 2021	Jul. 16, 2021
Dividends Payable, Date of Record		Dec. 27, 2021	Oct. 08, 2021	Jun. 30, 2021
Class A Common Stock
Subsequent Event [Line Items]
Dividends declared per share		$ 0.16
Class B Common Stock
Subsequent Event [Line Items]
Dividends declared per share		$ 0.16
Subsequent Event
Subsequent Event [Line Items]
Dividends Payable, Date Declared	Mar. 01, 2022
Dividends	$ 970,000
Dividends Payable, Date to be Paid	Apr. 08, 2022
Dividends Payable, Date of Record	Mar. 21, 2022
Subsequent Event \| Class A Common Stock
Subsequent Event [Line Items]
Dividends declared per share	$ 0.16
Subsequent Event \| Class B Common Stock
Subsequent Event [Line Items]
Dividends declared per share	$ 0.16