Subsequent Events

6 Months Ended

Jun. 30, 2012

Subsequent Events [Abstract]

Subsequent Events

Note 14:  Subsequent Events

On July 5, 2012, we concluded a private placement issuance of $168.0 million in senior unsecured notes. The total amount of the private placement issuance was divided into three tranches - $42.0 million 3.67% Series A Notes due July 5, 2022, $53.0 million 3.82% Series B Notes due July 5, 2024, and $73.0 million 4.02% Series C Notes due July 5, 2027 (the "Notes"). The Notes rank pari passu with our other senior unsecured debt. The proceeds from the issuance have reduced indebtedness under our revolving credit facility that was incurred to finance our repurchase of our Convertible Debentures discussed in Note 7, Debt. The weighted-average of the coupon interest rates on the Notes is 3.87%. Related interest-rate hedging and transaction costs incurred increase the annual effective rate of interest on the Notes to an estimated 4.16%. Refer to Note 4, Derivative Financial Instruments, for additional discussion of the related interest rate hedge.

On July 30, 2012, we used a portion of our revolving credit facility to repay our $50.0 million Series A floating rate notes that matured on July 28, 2012.