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Dividends and Share Repurchases (Details) - $ / shares			3 Months Ended
	Jan. 16, 2019	Nov. 23, 2018	Dec. 31, 2018	Dec. 31, 2017
Dividends Payable [Line Items]
Cash dividends per share (in dollars per share)		$ 0.18	$ 0.18	$ 0.15
Stock repurchased (in shares)			1,740,192
Average cost per share (in dollars per share)			$ 28.12
Remaining shares authorized to be repurchased (in shares)			292,406
Subsequent Event
Dividends Payable [Line Items]
Dividends declared (in dollars per share)	$ 0.2
Stock authorized to be repurchased (in shares)	10,000,000

X

- Definition

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

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

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The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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- Definition

The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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Total cost of shares repurchased divided by the total number of shares repurchased.

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Number of shares that have been repurchased during the period and are being held in treasury.

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