Note 7: Debt

Debt is summarized as follows:



	March 31	December 31	March 31
in thousands	2014	2013	2013
Long-term Debt
6.30% notes due 2013 1	$ 0	$ 0	$ 140,430
10.125% notes due 2015 2	151,674	151,897	152,520
6.50% notes due 2016 3	127,678	511,627	514,221
6.40% notes due 2017 4	218,578	349,907	349,892
7.00% notes due 2018 5	399,783	399,772	399,741
10.375% notes due 2018 6	248,888	248,843	248,716
7.50% notes due 2021 7	600,000	600,000	600,000
7.15% notes due 2037 8	239,564	239,561	239,555
Medium-term notes	6,000	6,000	6,000
Industrial revenue bonds	14,000	14,000	14,000
Other notes	788	806	949
Total long-term debt including current maturities	$ 2,006,953	$ 2,522,413	$ 2,666,024
Less current maturities	171	170	140,604
Total long-term debt	$ 2,006,782	$ 2,522,243	$ 2,525,420
Estimated fair value of long-term debt	$ 2,313,964	$ 2,820,399	$ 2,851,237


1	Includes decreases for unamortized discounts, as follows: March 31, 2013 — $14 thousand.
2	Includes an increase for the unamortized portion of the deferred gain realized upon the August 2011 settlement of interest rate swaps, as follows: March 31, 2014 — $1,837 thousand, December 31, 2013 — $2,082 thousand and March 31, 2013 — $2,766 thousand. Additionally, includes decreases for unamortized discounts, as follows: March 31, 2014 — $163 thousand, December 31, 2013 — $185 thousand and March 31, 2013 — $246 thousand. The effective interest rate for these notes is 9.58%.
3	Includes an increase for the unamortized portion of the deferred gain realized upon the August 2011 settlement of interest rate swaps, as follows: March 31, 2014 — $2,677 thousand, December 31, 2013 — $11,627 thousand and March 31, 2013 — $14,221 thousand. The effective interest rate for these notes is 6.00%.
4	Includes decreases for unamortized discounts, as follows: March 31, 2014 — $55 thousand, December 31, 2013 — $93 thousand and March 31, 2013 — $108 thousand. The effective interest rate for these notes is 7.41%.
5	Includes decreases for unamortized discounts, as follows: March 31, 2014 — $217 thousand, December 31, 2013 — $228 thousand and March 31, 2013 — $259 thousand. The effective interest rate for these notes is 7.87%.
6	Includes decreases for unamortized discounts, as follows: March 31, 2014 — $1,112 thousand, December 31, 2013 — $1,157 thousand and March 31, 2013 — $1,284 thousand. The effective interest rate for these notes is 10.63%.
7	The effective interest rate for these notes is 7.75%.
8	Includes decreases for unamortized discounts, as follows: March 31, 2014 — $624 thousand, December 31, 2013 — $627 thousand and March 31, 2013 — $633 thousand. The effective interest rate for these notes is 8.05%.

Our long-term debt is presented in the table above net of unamortized discounts from par and unamortized deferred gains realized upon settlement of interest rate swaps. Discounts and deferred gains are being amortized using the effective interest method over the respective terms of the notes.

The estimated fair value of long-term debt presented in the table above was determined by averaging the asking price quotes for the notes. The fair value estimates were based on Level 2 information (as defined in Note 5) available to us as of their respective balance sheet dates. Although we are not aware of any factors that would significantly affect the estimated fair value amounts, such amounts have not been comprehensively revalued since those dates.

There were no material scheduled debt payments during the first quarter of 2014. However, as described below we purchased $506,366,000 principal amount of outstanding debt through a tender offer in the first quarter of 2014. Scheduled debt payments during 2013 included $10,000,000 in January to retire the 8.70% medium-term note and $140,444,000 in June to retire the 6.30% notes.

In March 2014, we purchased $506,366,000 principal amount of outstanding debt through a tender offer as follows: $374,999,000 of 6.50% notes due in 2016 and $131,367,000 of 6.40% notes due in 2017. This debt purchase was funded by the sale of our cement and concrete businesses in the Florida area as described in Note 16. The March 2014 debt purchases cost $579,659,000, including a $71,829,000 premium above the principal amount of the notes and transaction costs of $1,464,000. The premium primarily reflects the trading prices of the notes relative to par prior to the tender offer commencement. Additionally, we recognized a net benefit of $344,000 associated with the acceleration of a proportional amount of unamortized discounts, deferred gains, deferred financing costs and amounts accumulated in OCI. The combined expense of $72,949,000 is presented in the accompanying Condensed Consolidated Statement of Comprehensive Income as a component of interest expense for the three month period ended March 31, 2014.

Additionally, in March 2014, we amended our $500,000,000 line of credit to, among other things, extend the term from March 2018 to March 2019, eliminate the borrowing capacity governor of eligible accounts receivable and eligible inventory, and provide for the line of credit to become unsecured upon achievement of certain credit metrics and/or credit ratings. Until such metrics/ratings are achieved, the line of credit is secured by accounts receivable and inventory. As of March 31, 2014, our available borrowing capacity was $425,750,000.

Borrowings under the line of credit bear interest at a rate determined at the time of borrowing equal to the lower of LIBOR plus a margin ranging from 1.50% to 2.25% based on our total debt to EBITDA ratio, or an alternative rate derived from the lender’s prime rate. Borrowings on our line of credit are classified as short-term due to our intent to repay any borrowings within twelve months. As of March 31, 2014, the applicable margin for LIBOR based borrowing was 2.25%.