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

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-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.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

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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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Subsequent Events - Cash Dividends (Details) - Subsequent Event - $ / shares	Jun. 29, 2018	Jun. 20, 2018	Jun. 06, 2018
Dividends Payable [Line Items]
Dividends payable, date declared			Jun. 06, 2018
Common Stock, Dividends, Per Share, Declared			$ 1.75
Dividends payable, date to be paid	Jun. 29, 2018
Dividends payable, date of record		Jun. 20, 2018