Line of Credit (Details) (USD $) In Millions, unless otherwise specified	0 Months Ended
	Oct. 23, 2013
Line of Credit Facility [Line Items]
Planned Repayments of Long-term Debt	$ 845.1
Line of Credit Facility, Maximum Borrowing Capacity	100
Debt Convenent, Minimum Required Average Bank Account Balances	30
Debt Convenant, Minimum Required Quarterly EBIDTA	75
Debt Covenant, Required Balance of Cash and Cash Equivalents and Marketable Securities	$ 500
London Interbank Offered Rate (LIBOR) [Member]
Line of Credit Facility [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.00%