In millions	2012		2011

3.75% notes due 2022, net of unamortized discount of ($1.1)	$	348.9	$	—
5.125% notes due 2020, net of unamortized discount of ($0.9) and ($1.0) respectively		249.1		249.0
6.125% notes due 2016, net of unamortized discount of ($0.4) and ($0.5) respectively		149.6		149.5
Revolving credit facility		—		348.0
Industrial development and revenue bonds through 2018		4.5		5.5
Other, including capital lease obligations		0.4		10.4

Total long-term debt		752.5		762.4
Less current portion		—		(158.1	)

Total long-term debt, net of current portion	$	752.5	$	604.3

On November 20, 2012, the Company completed a public offering of $350.0 million of notes with a stated interest rate of 3.75% due November 15, 2022 (the "2022 Notes"). The 2022 Notes were issued at a discount of approximately $1.1 million, resulting in proceeds to the Company of approximately $348.9 million. The 2022 Notes are presented net of the related discount in Long-term debt in the consolidated balance sheet at December 31, 2012. Interest on the 2022 Notes will be paid each May 15 and November 15, commencing on May 15, 2013. The Company incurred costs to issue the 2022 Notes of approximately $2.9 million, inclusive of underwriters', credit rating agencies' and attorneys' fees and other costs. The issuance costs have been recorded in Other long-term assets in the consolidated balance sheet at December 31, 2012. Both the discount and the issuance costs will be amortized to interest expense over the life of the 2022 Notes.

The 2022 Notes, in whole or in part, may be redeemed at the Company's option, plus accrued and unpaid interest, at any time prior to August 15, 2022 at a price equal to the greater of:

The 2022 Notes may also be redeemed at any time after August 15, 2022, in whole or in part, at the Company's option at 100% of the principal amount, plus accrued and unpaid interest. Upon a change-in-control triggering event, the Company will be required to offer to repurchase the 2022 Notes at 101% of the principal amount, plus accrued and unpaid interest.

The 2022 Notes are subject to the Company's existing indenture dated January 15, 1997 with Bank of New York Mellon, as trustee, and accordingly are subject to the same restrictive covenants and limitations as the Company's existing indebtedness. The 2022 Notes are general unsecured obligations of the Company and rank equally with the Company's existing and future unsecured and unsubordinated indebtedness. The 2022 Notes are subordinate to any existing or future debt or other liabilities of the Company's subsidiaries. At December 31, 2012, the principal amount of the Company's subsidiaries indebtedness was approximately $4.9 million.

On December 9, 2010, the Company completed a public offering of $250.0 million of notes with a stated interest rate of 5.125% due December 15, 2020 (the "2020 Notes"). The 2020 Notes were issued at a discount of approximately $1.1 million, resulting in proceeds to the Company of approximately $248.9 million. The 2020 Notes are presented net of the related discount in Long-term debt in the consolidated balance sheet at December 31, 2012 and 2011. Interest on the 2020 Notes will be paid each June 15 and December 15, commencing on June 15, 2011. The Company incurred costs to issue the 2020 Notes of approximately $1.9 million, inclusive of underwriters', credit rating agencies' and attorneys' fees and other costs. The issuance costs have been recorded in Other long-term assets in the consolidated balance sheet at December 31, 2012 and 2011. Both the discount and the issuance costs will be amortized to interest expense over the life of the 2020 Notes. The proceeds were utilized to re-pay borrowings under the Company's Revolving Credit Facility that were used to finance the acquisition of Hawk.

The 2020 Notes, in whole or in part, may be redeemed at the Company's option, plus accrued and unpaid interest, at any time prior to September 15, 2020 at a price equal to the greater of:

The 2020 Notes may also be redeemed at any time after September 15, 2020, in whole or in part, at the Company's option at 100% of the principal amount, plus accrued and unpaid interest. Upon a change-in-control triggering event, the Company will be required to offer to repurchase the 2020 Notes at 101% of the principal amount, plus accrued and unpaid interest.

The 2020 Notes are subject to the Company's existing indenture dated January 15, 1997 with Bank of New York Mellon, as trustee, and accordingly are subject to the same restrictive covenants and limitations as the Company's existing indebtedness. The 2020 Notes are general unsecured obligations of the Company and rank equally with the Company's existing and future unsecured and unsubordinated indebtedness. The 2020 Notes are subordinate to any existing or future debt or other liabilities of the Company's subsidiaries. At December 31, 2012, the principal amount of the Company's subsidiaries indebtedness was approximately $4.9 million.

In connection with the acquisition of Hawk on December 1, 2010, the Company assumed Hawk's 8.75% senior notes previously due November 1, 2014 (the "Hawk senior notes"). The Hawk senior notes were recorded at estimated fair value of $59.0 million on the date of acquisition. See Note 3 for further information regarding the Hawk acquisition.

On December 10, 2010, the Company notified the holders of the Hawk senior notes of its intent to redeem such notes under the terms of the related indenture. On January 10, 2011, the Company redeemed all of the outstanding Hawk senior notes for approximately $59.1 million, of which $57.1 million related to the outstanding principal amount, $1.9 million related to a contractual redemption premium, and $0.1 million for accrued and unpaid interest. Accordingly, the carrying value of the Hawk senior notes has been presented as Short-term debt, including current maturities in the consolidated balance sheet at December 31, 2010. There was no extinguishment gain or loss recorded as the carrying value and amount paid to redeem the Hawk senior notes were the same. The Company redeemed the Hawk senior notes using borrowings under its revolving credit facility.

On October 20, 2011, the Company entered into a Third Amended and Restated Credit Agreement (the "Amended Credit Agreement") administered by JPMorgan Chase Bank, N.A. ("JPMorgan Chase"). The Credit Agreement provides for a $600 million revolving line of credit with a maturity date of October 20, 2016 and replaces the Second Amended and Restated Credit Agreement, which was scheduled to expire on July 12, 2012.

The new revolving credit facility provides for grid-based interest pricing based on the credit rating of the Company's senior unsecured bank debt or other unsecured senior debt. The facility requires the Company to meet various restrictive covenants and limitations including certain leverage ratios, interest coverage ratios and limits on outstanding debt balances held by certain subsidiaries.

In addition to JPMorgan Chase, the following lenders are parties to the Credit Agreement: Wells Fargo Bank, N.A., Bank of America, N.A., SunTrust Bank, The Bank of Tokyo-Mitsubishi UFJ Ltd, Mizuho Corporate Bank (USA), T.D. Bank, N.A., Citicorp North America, Inc., HSBC Bank USA National Association, PNC Bank National Association (collectively, the "Lenders"). The following Lenders provide the Company general banking and/or investment advisory services: JPMorgan Chase, Wells Fargo Bank, Bank of America, SunTrust Bank, The Bank of Tokyo, Mizuho Bank, T.D. Bank, Citicorp, HSBC Bank, PNC Bank.

At December 31, 2012, the Company had $600.0 million available under its Amended Credit Agreement. The average interest rate of the Company's revolving credit facilities for 2012 and 2011 was 1.30% and 0.84%, respectively.

The Company also maintains an uncommitted line of credit of which $45.0 million and $35.0 million was available for borrowing as of December 31, 2012 and 2011, respectively. The average interest rate on the uncommitted line was 1.58% for 2012 and 1.50% for 2011.

As of December 31, 2012, the Company had outstanding issued letters of credit amounting to $31.8 million. Letters of credit are issued primarily to provide security under insurance arrangements and certain borrowings. Letters of credit were previously issued under the Company's revolving credit facility and reduced the amount available for borrowings under the facility. Currently, the Company's letters of credit are issued separately from its revolving credit facility and do not affect borrowing availability under the credit facility.

The industrial development and revenue bonds are collateralized by letters of credit, Company guarantees and/or by the facilities and equipment acquired through the proceeds of the related bond issuances. The weighted average interest rates on the revenue bonds for 2012 and 2011 were 1.22% and 1.12%, respectively. The Company estimates the fair value of its industrial development and revenue bonds approximates their carrying value.

Under the Company's various debt and credit facilities, the Company is required to meet various restrictive covenants and limitations, including certain net worth, cash flow ratios and limits on outstanding debt balances held by certain subsidiaries. The Company was in compliance with all covenants and limitations in 2012 and 2011.

Cash payments for interest were $25.7 million in 2012, $23.0 million in 2011, and $9.3 million in 2010. Interest expense, net is presented net of interest income of $0.5 million in 2012, $0.5 million in 2011, and $0.3 million in 2010.

Regarding the Company's long-term debt, $150.0 million (excluding unamortized discount of $0.4 million) matures in 2016, $4.5 million matures in 2018, $250 million (excluding unamortized discount of $0.9 million) matures in 2020, and $350.0 million (excluding unamortized discount of $1.1 million) matures in 2022.

At December 31, 2012, the fair value of the Company's par value $350 million, 3.75% senior notes due 2022, $250 million, 5.125% senior notes due 2020, and par value $150 million, 6.125% senior notes due 2016, using the Level 2 inputs, is approximately $355.4 million, $275.3 and $171.5 million, respectively. Fair value is estimated based on current yield rates plus the Company's estimated credit spread available for financings with similar terms and maturities. The Company estimates that the fair value of amounts outstanding under the revolving credit facility approximates their carrying value.