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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- Definition

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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- Definition

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

+ References

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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 - Additional Information (Detail) - $ / shares			3 Months Ended	6 Months Ended
	Jul. 23, 2018	Apr. 24, 2018	Jul. 03, 2018	Jul. 03, 2018
Subsequent Event [Line Items]
Common stock quarterly cash dividend per share			$ 0.11	$ 0.22
Common stock payable date		May 28, 2018
Common stock payable record date		May 14, 2018
Board of Directors [Member]
Subsequent Event [Line Items]
Common stock quarterly cash dividend per share	$ 0.11
Common stock payable date	Aug. 27, 2018
Common stock payable record date	Aug. 13, 2018