Senior Note	12 Months Ended
Dec. 31, 2013
Senior Note	Note 9. Senior Note On October 4, 2013, the Company completed a public debt offering of $265 million principal amount of 5.75% Senior Notes (“5.75% Senior Notes”) and received net proceeds of $263 million. The Principal amount of the Senior Notes is payable in one single installment on October 15, 2023. The Company used a portion of the proceeds of the 5.75% Senior Notes for the redemption of the 7.0% Senior Notes due May 1, 2016 (“7.0% Senior Notes). The Company incurred a charge of $17.9 million for the payment of call premium in connection with the redemption of the 7.0% Senior Notes. The Senior Notes liability as of December 31, 2013 was $263.3 million. The unamortized discount as of December 31, 2013 was $1.7 million. The fair value of the 5.75% Senior Notes as of December 31, 2013 was $277.6 million. The fair value of the 7.0% Senior Notes as of December 31, 2012 was $123.2 million. The fair values were determined using quoted prices for similar instruments in active markets and is classified as Level 2 within the fair value hierarchy as defined by the accounting guidance for fair value measurements. Interest is payable on the 5.75% Senior Notes each April 15 and October 15. The effective interest rate related to the 5.75% Senior Notes, based on the proceeds net of discount and all issuance costs, approximates 5.86%. Interest expense on the 5.75% and 7.0% Senior Notes totaled $10.5 million for the year ended December 31, 2013. Interest expense on the 7.0% Senior Notes was $8.2 million for the years ended December 31, 2012 and 2011, respectively. The interest rate payable on the 5.75% Senior Notes is subject to a tiered adjustment based on defined changes in the Company’s debt ratings. The Company may redeem the 5.75% Senior Notes in whole at any time or in part from time to time at a make-whole redemption price. The 5.75% Senior Notes are the Company’s only senior unsecured obligation and will rank equally with future senior unsecured indebtedness. The terms of the 5.75% Senior Notes contain various restrictive business and financial covenants, including a restriction on indebtness, and other restrictions typical for debt obligations of this type, including limitations on mergers, liens and dispositions of the common stock of certain subsidiaries. As of December 31, 2013, the Company was in compliance with all such covenants.

Note 9. Senior Note

On October 4, 2013, the Company completed a public debt offering of $265 million principal amount of 5.75% Senior Notes (“5.75% Senior Notes”) and received net proceeds of $263 million. The Principal amount of the Senior Notes is payable in one single installment on October 15, 2023. The Company used a portion of the proceeds of the 5.75% Senior Notes for the redemption of the 7.0% Senior Notes due May 1, 2016 (“7.0% Senior Notes). The Company incurred a charge of $17.9 million for the payment of call premium in connection with the redemption of the 7.0% Senior Notes. The Senior Notes liability as of December 31, 2013 was $263.3 million. The unamortized discount as of December 31, 2013 was $1.7 million.

The fair value of the 5.75% Senior Notes as of December 31, 2013 was $277.6 million. The fair value of the 7.0% Senior Notes as of December 31, 2012 was $123.2 million. The fair values were determined using quoted prices for similar instruments in active markets and is classified as Level 2 within the fair value hierarchy as defined by the accounting guidance for fair value measurements.

Interest is payable on the 5.75% Senior Notes each April 15 and October 15. The effective interest rate related to the 5.75% Senior Notes, based on the proceeds net of discount and all issuance costs, approximates 5.86%. Interest expense on the 5.75% and 7.0% Senior Notes totaled $10.5 million for the year ended December 31, 2013. Interest expense on the 7.0% Senior Notes was $8.2 million for the years ended December 31, 2012 and 2011, respectively.

The interest rate payable on the 5.75% Senior Notes is subject to a tiered adjustment based on defined changes in the Company’s debt ratings. The Company may redeem the 5.75% Senior Notes in whole at any time or in part from time to time at a make-whole redemption price. The 5.75% Senior Notes are the Company’s only senior unsecured obligation and will rank equally with future senior unsecured indebtedness.

The terms of the 5.75% Senior Notes contain various restrictive business and financial covenants, including a restriction on indebtness, and other restrictions typical for debt obligations of this type, including limitations on mergers, liens and dispositions of the common stock of certain subsidiaries. As of December 31, 2013, the Company was in compliance with all such covenants.