Debt Private Placement Shelf Agreement (Details) - Maximum - Senior Notes - Private Placement Shelf Agreement $ in Thousands	Sep. 22, 2014 USD ($)
Debt Instrument [Line Items]
Agreement face amount	$ 100,000
Debt Instrument, Term	12 years

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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