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

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=27012166&loc=d3e187085-122770

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Date the declared dividend will be paid, in CCYY-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=98513485&loc=d3e4304-108586

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Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

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

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

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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.

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Subsequent Events (Details) - USD ($) $ / shares in Units, $ in Thousands				3 Months Ended			8 Months Ended	9 Months Ended
	Oct. 03, 2019	May 01, 2019	Mar. 05, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Aug. 31, 2019	Sep. 30, 2019	Sep. 30, 2018
Subsequent Event [Line Items]
Common shares dividend declared		$ 14,243	$ 14,218	$ 14,243	$ 14,218	$ 14,190		$ 28,500	$ 14,200
Dividend per share (in dollars per share) \| $ / shares		$ 0.330	$ 0.330			$ 0.33	$ 0.66		$ 0.33
Subsequent Event
Subsequent Event [Line Items]
Dividend declaration date	Oct. 03, 2019
Common shares dividend declared	$ 345,400
Dividend per share (in dollars per share) \| $ / shares	$ 8.00
Dividend record date	Oct. 14, 2019
Dividend payment date	Oct. 23, 2019