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Stockholders' Equity - Cash Dividends Paid or Payable Per Share (Details) - $ / shares				3 Months Ended
	Jul. 26, 2019	Apr. 30, 2019	Feb. 05, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018
Dividends Payable [Line Items]
Dividend per share, common stock (in dollars per share)				$ 0.27	$ 0.24	$ 0.24	$ 0.24	$ 0.22	$ 0.22
Common Stock
Dividends Payable [Line Items]
Dividend per share, common stock (in dollars per share)	$ 0.27	$ 0.24	$ 0.24

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- Definition

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

+ 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=27012166&loc=d3e187085-122770

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Details

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