Debt - Private Placement Shelf Agreement (Details) $ in Thousands	Sep. 22, 2014 USD ($)
Maximum \| Senior Notes \| Private Placement Shelf Agreement
Debt Instrument [Line Items]
Agreement face amount	$ 100,000

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