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Subsequent Events (Notes)	3 Months Ended
	Mar. 31, 2015
Subsequent Events [Abstract]
Subsequent Events [Text Block]	Subsequent Events In April 2015, the company monetized the derivative liability related to $75.0 million notional amount of its fixed-to-float interest rate swaps related to the 2020 Notes and $45.0 million notional amount of its fixed-to-float interest rate swaps related to the 2022 Notes. The loss on the monetization of these swaps of $0.7 million was treated as a decrease to the debt balances for the 2020 Notes and 2022 Notes, and is being amortized against interest expense over the life of the original swaps.

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The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

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