Debt

Outstanding debt balances were as follows:



	March 31, 2015		December 31, 2014
Notes payable
Uncommitted lines of credit	$	44.0	$	24.8
Other	0.7		0.8
	$	44.7	$	25.6
Long-term debt
Credit facility	$	295.0	$	240.0
Senior notes	225.0		225.0
Industrial development revenue bonds	11.9		11.9
Other	2.8		2.9
	$	534.7	$	479.8

As of March 31, 2015, the Company had various international short-term uncommitted lines of credit with borrowing limits of $122.3. The weighted-average interest rate on outstanding borrowings on the short-term uncommitted lines of credit as of March 31, 2015 and December 31, 2014 was 3.02 percent and 2.96 percent, respectively. The increase in the weighted-average interest rate is attributable to the change in mix of borrowings in foreign entities. Short-term uncommitted lines mature in less than one year. The amount available under the short-term uncommitted lines at March 31, 2015 was $78.3.

In August 2014, the Company amended and extended its credit facility, including an increase to its borrowing limits under the new credit facility from $500.0 to $520.0. The amended and extended credit facility expires in August 2019 and did not change any of the covenants related to the previous agreement. Under the terms of the amended and extended credit facility, the Company has the ability, subject to various approvals, to increase the borrowing limits by $250.0. Up to $50.0 of the revolving credit facility is available under a swing line sub-facility. The weighted-average interest rate on outstanding credit facility borrowings as of March 31, 2015 and December 31, 2014 was 1.69 percent, respectively, which is variable based on the London Interbank Offered Rate (LIBOR). The amount available under the credit facility as of March 31, 2015 was $225.0.

In March 2006, the Company issued senior notes in an aggregate principal amount of $300.0 with a weighted-average fixed interest rate of 5.50 percent. The Company entered into a derivative transaction to hedge interest rate risk on $200.0 of the senior notes, which was treated as a cash flow hedge. This reduced the effective interest rate from 5.50 percent to 5.36 percent. The Company funded the repayment of $75.0 of the senior notes at maturity in March 2013 using borrowings under its revolving credit facility. The maturity dates of the remaining senior notes are staggered, with $175.0 and $50.0 due in March 2016 and 2018, respectively. For the $175.0 of the Company's senior notes maturing in March 2016, management intends to secure the repayment through additional financing.

In 1997, industrial development revenue bonds were issued on behalf of the Company. The proceeds from the bond issuances were used to construct new manufacturing facilities in the United States. The Company guaranteed the payments of principal and interest on the bonds by obtaining letters of credit. The bonds were issued with a 20-year original term and are scheduled to mature in 2017. Each industrial development revenue bond carries a variable interest rate, which is reset weekly by the remarketing agents. The weighted-average interest rate on the bonds was 0.21 percent and 0.27 percent as of March 31, 2015 and December 31, 2014, respectively.

The Company’s financing agreements contain various restrictive financial covenants, including net debt to capitalization and net interest coverage ratios. As of March 31, 2015, the Company was in compliance with the financial and other covenants in its debt agreements.