Income Taxes Summary of Valuation Allowance (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013
Valuation Allowance [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration	$ 0.2

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards that are subject to expiration dates.

No definition available.

Name:	us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant