Fair Value Measurements Fair Value Measurements Narratives (Details) $ in Thousands	6 Months Ended
Jun. 30, 2015 USD ($)
Fair Value, measurements, recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Transfers between Levels, Fair Value Disclosure	$ 0

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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Balance Type:	na
Period Type:	duration