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Stockholders' Equity Repurchase Program (Details) (Subsequent Event, USD $) In Millions, unless otherwise specified	0 Months Ended
	Apr. 14, 2014
Subsequent Event
Subsequent Event [Line Items]
Stock Repurchase Program, Authorized Amount	$ 500

X

- Definition

Amount of a stock repurchase plan authorized by an entity's Board of Directors.

+ References

No definition available.

+ Details

Name:	us-gaap_StockRepurchaseProgramAuthorizedAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	us-gaap_SubsequentEventLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration