No definition available.

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The cash outflow to reacquire common stock during the period.

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-Publisher FASB
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-Topic 230
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- Definition

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

+ References

No definition available.

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- Definition

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

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- Definition

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

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Stockholders' Equity - Incentive and Other (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions	9 Months Ended		138 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Aug. 10, 2018	Mar. 29, 2007
Share Repurchase Program
Payments for Repurchase of Common Stock	$ 11,573	$ 8,909
Stock Repurchase Program 2007
Share Repurchase Program
Number of shares of outstanding common stock authorized to be acquired under a stock repurchase program	8.8		8.8	0.7	1.0
Share repurchase (in shares)			7.9
Average price (in dollars per share)	$ 46.10		$ 14.79
Payments for Repurchase of Common Stock	$ 11,600
Stock Repurchase Program 2007 \| Maximum
Share Repurchase Program
Share repurchase (in shares)	0.3