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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
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- Definition

Amount of cash outflow in the form of ordinary dividends to common shareholders of the parent entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
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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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Dividends - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	Apr. 30, 2019	Mar. 31, 2019	Mar. 31, 2018
Equity [Abstract]
Dividends paid		$ 14,588	$ 14,149
Subsequent Event [Line Items]
Dividends declared (in dollars per share)		$ 0.19750	$ 0.19250
Subsequent Event
Subsequent Event [Line Items]
Dividends declared (in dollars per share)	$ 0.19750