Long-Term Debt and Borrowings Under Short-Term Credit Agreements - Private Placement Shelf Agreement (Details) (Maximum, Senior Notes, Private Placement Shelf Agreement, USD $) In Thousands, unless otherwise specified	0 Months Ended
	Sep. 22, 2014	Sep. 22, 2014
Maximum | Senior Notes | Private Placement Shelf Agreement
Debt Instrument [Line Items]
Agreement face amount		$ 100,000
Note issuance maximum term	12 years