Note 12—Borrowings

As of March 31, 2015 and December 31, 2014 the Company’s borrowings were as follows:

	March 31,		December 31,
(in millions)	2015		2014
3.75% notes due 2022, net of unamortized discount of ($0.9) and ($0.9), respectively	$	349.1	$	349.1
5.125% notes due 2020, net of unamortized discount of ($0.6) and ($0.7) respectively	249.4		249.3
6.125% notes due 2016, net of unamortized discount of ($0.2) and ($0.2) respectively	149.8		149.8
Revolving credit facility	—		—
Industrial development and revenue bonds through 2018	1.5		1.5
Other, including capital lease obligations	0.1		0.1
Total long-term debt	749.9		749.8
Less current portion	—		—
Total long-term debt, net of current portion	$	749.9	$	749.8

Revolving Credit Facilities

As of March 31, 2015, the Company had $600.0 million available under its Third Amended and Restated Credit Agreement (the “Amended Credit Agreement”) administered by JPMorgan Chase Bank, N.A. During the three months ended March 31, 2015 and 2014, there were no borrowings under the revolving credit facility.

Uncommitted Line of Credit

The Company also maintains an uncommitted line of credit of which $45.0 million was available for borrowing as of March 31, 2015 and December 31, 2014. During the three months ended March 31, 2015 and 2014, there were no borrowings under the uncommitted line of credit.

Covenants and Limitations

Under the Company’s various debt and credit facilities, the Company is required to meet various restrictive covenants and limitations, including limitations on certain leverage ratios, interest coverage and limits on outstanding debt balances held by certain subsidiaries. The Company was in compliance with all covenants and limitations as of March 31, 2015 and December 31, 2014.

Other Matters

At March 31, 2015, 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 Level 2 inputs in the fair value hierarchy, was approximately $346.9 million, $275.0 million and $159.2 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.