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Subsequent Events	6 Months Ended
	Jun. 30, 2017
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events As discussed in Note 6, we used a portion of the net proceeds from the issuance of the 2027 Notes to redeem our 2021 Notes on July 17, 2017. We paid $413.3 million to redeem the 2021 Notes which included a redemption premium equal to 3.313% of the $400 million principal amount of the 2021 Notes. We incurred a loss of $18.4 million on the redemption of the 2021 Notes.

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- Definition

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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