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Subsequent Event	9 Months Ended
	Sep. 30, 2013
Subsequent Events [Abstract]
Subsequent Event	Subsequent Event On October 22, 2013, we settled the partial unwind agreements with counterparties (see Note 5). The agreement was to settle 50% of the outstanding call options (2015 notes hedges) and warrants in net cash on the day following the expiration of our exchange offer for our outstanding 2015 notes which resulted in our receipt of $20.3 million in total cash from the counterparties. After the settlement, 8.1 million warrants remain outstanding with a strike price of $15.81 and continue to be accounted for as equity. The 2015 notes hedges with two counterparties remain outstanding whereby we have the option to receive the cash equivalent of the conversion spread on approximately 8.1 million shares of our common stock based upon a strike price of $12.35 per share, subject to certain conversion rate adjustments in the 2015 notes. On October 24, 2013, we extinguished $72.3 million principal amount of our 2015 notes and $29.6 million principal amount of our 2029 notes pursuant to our exchange offers that expired on October 21, 2013. Total consideration paid to the holders of the 2015 notes consisted of $83.2 million in cash and $44.5 million in shares of our common stock (2,079,295 shares). Total consideration paid to holders of the 2029 notes consisted of $44.4 million in cash and $22.3 million in shares of our common stock (1,039,485 shares). Total consideration paid to the holders of the 2015 notes and 2029 notes excludes the accrued interest through the settlement date that was paid. The carrying value of the convertible notes at extinguishment was $66.6 million and $27.7 million for the 2015 notes and 2029 notes, respectively, and losses net of tax of $8.1 million for the 2015 notes and $3.3 million for the 2029 notes were recognized.

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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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