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Earnings Per Share and Certain Related Information - Dividends (Details) - $ / shares	Oct. 26, 2018	Sep. 11, 2018	Aug. 31, 2018	Jul. 19, 2018	Jun. 15, 2018	May 03, 2018	Mar. 16, 2018	Jan. 18, 2018	Nov. 10, 2017	Sep. 27, 2017
Earnings Per Share Reconciliation [Abstract]
Dividends declared (in dollars per share)		$ 0.15		$ 0.15		$ 0.15		$ 0.15		$ 0.15
Dividends paid (in dollars per share)	$ 0.15		$ 0.15		$ 0.15		$ 0.15		$ 0.15

X

- Definition

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

+ References

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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- Definition

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

+ References

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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- References

No definition available.

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