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Other	9 Months Ended
Other	Sep. 30, 2015
Debt and Other Disclosures [Abstract]
Debt Disclosure	Debt At September 30, 2015, short-term debt consisted of $151.9 million 6.85% senior notes due in the fourth quarter of 2015 and $350.0 million 7.125% senior notes due in the third quarter of 2016. Also included in short-term debt was a $4.2 million fair value hedge liability on the $350.0 million notes, with a corresponding fair value hedge asset included in long-term investments. We had no amount outstanding on our revolving credit facility at September 30, 2015. During the nine months ended September 30, 2015, we made principal payments of $62.6 million on our senior secured non-recourse notes issued by Northwind Holdings, LLC. In the second quarter of 2014, we purchased and retired $145.0 million principal of our outstanding 6.85% notes, including a make-whole amount of $13.2 million, for a total cost of $158.2 million. In conjunction with this retirement, we reclassified $13.1 million of the deferred gain on previously terminated derivatives associated with the hedge of this debt from accumulated other comprehensive income to realized investment gain in our consolidated statements of income.
Income Tax Disclosure	Income Tax In the first quarter of 2015, we reached agreement with the Internal Revenue Service on all outstanding issues related to the examinations for 2009 and 2010 tax years and refund claims filed for tax credits related to tax years 2003 through 2012. As a result of this agreement, we reduced our reserve for uncertain tax positions in our consolidated balance sheet by $19.3 million. We also recognized in our consolidated statements of income a reduction in federal income taxes of $5.8 million.