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

X

- 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

+ Details

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X

- 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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