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Subsequent Events Subsequent Events	3 Months Ended
Subsequent Events Subsequent Events	Mar. 31, 2013
Subsequent Events [Abstract]
Subsequent Events	SUBSEQUENT EVENTS On April 2, 2013, the Company completed its debt offering of $425 million aggregated principal amount of 4.75% senior notes due 2021in a registered public offering. The Company expects to use the net proceeds of this offering, together with cash on hand, to refinance, through a redemption, all $425 million of the 9.5% senior notes due 2017, at a redemption premium plus accrued and unpaid interest to, June 15, 2013, the redemption date, and to pay fees and expenses incurred in connection with this offering and the redemption.