Income Taxes Unrecognized Tax Benefits (Details) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 3,200,000
Unrecognized Tax Benefits	3,446,000us-gaap_UnrecognizedTaxBenefits	3,011,000us-gaap_UnrecognizedTaxBenefits
Additions based on tax positions related to the current year	357,000	532,000
Additions for tax positions of prior years	76,000	281,000
Reductions for tax positions of prior years	(98,000)	(102,000)
Reductions as a result of a lapse of applicable statute of limitations	(95,000)	(70,000)
Other	(2,000)	(206,000)
Unrecognized Tax Benefits	3,688,000us-gaap_UnrecognizedTaxBenefits	3,446,000us-gaap_UnrecognizedTaxBenefits
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	$ 200,000

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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-Publisher FASB

-Name Accounting Standards Codification

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Amount of expense for interest on an underpayment of income taxes and penalties related to a tax position claimed or expected to be claimed in the tax return.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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The net amount of all increases and decreases in unrecognized tax benefits for the period.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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