DEBT

Outstanding debt balances were as follows:



	December 31,
	2012		2011
Notes payable – current:
Uncommitted lines of credit	$	33,916	$	21,572
Other	296		150
	$	34,212	$	21,722
Long-term debt:
Credit facility	$	300,000	$	291,000
Senior notes	300,000		300,000
Industrial development revenue bonds	11,900		11,900
Other	5,634		3,254
	$	617,534	$	606,154

As of December 31, 2012, the Company had various short-term uncommitted lines of credit with borrowing limits of $111,337. The weighted-average interest rate on outstanding borrowings on the short-term uncommitted lines of credit as of December 31, 2012 and 2011 was 2.81 percent and 4.23 percent, respectively. The decline in the weighted-average interest rate is attributable to the change in geographic mix of borrowings. Short-term uncommitted lines mature in less than one year. The amount available under the short-term uncommitted lines at December 31, 2012 was $77,421.

In June 2011, the Company entered into a five-year credit facility, which replaced its previous credit facility. As of December 31, 2012, the Company had borrowing limits under the credit facility totaling $500,000. Under the terms of the credit facility agreement, the Company has the ability, subject to various approvals, to increase the borrowing limits by $250,000. Up to $50,000 of the revolving credit facility is available under a swing line subfacility. The weighted-average interest rate on outstanding credit facility borrowings as of December 31, 2012 and 2011 was 1.33 percent and 1.49 percent, respectively, which is variable based on the London Interbank Offered Rate (LIBOR). The amount available under the credit facility as of December 31, 2012 was $200,000. The Company incurred $1,876 of fees related to its credit facility in 2011, which are amortized as a component of interest expense over the term of the facility.

In March 2006, the Company issued senior notes in an aggregate principal amount of $300,000 with a weighted-average fixed interest rate of 5.50 percent. The maturity dates of the senior notes are staggered, with $75,000, $175,000 and $50,000 becoming due in 2013, 2016 and 2018, respectively. Additionally, the Company entered into a pre-issuance cash flow hedge to offset interest rate risk on $200,000 of the senior notes, which reduced the effective interest rate from 5.50 to 5.36 percent.

Maturities of debt as of December 31, 2012 are as follows: $109,212 in 2013, $1,351 in 2014, $1,086 in 2015, $476,662 in 2016, $13,428 in 2017 and $50,007 thereafter. As of December 31, 2012, although due within twelve months, $75,000 of the senior notes remain classified as long-term debt because of the Company's intent and ability to fund the repayment using amounts available under its credit facility. Interest expense on the Company’s debt instruments for the years ended December 31, 2012, 2011 and 2010 was $23,454, $26,002 and $27,520, respectively.

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 0.49 percent and 0.77 percent as of December 31, 2012 and 2011, respectively. Interest expense on the bonds for the years ended December 31, 2012, 2011 and 2010 was $88, $88 and $72, respectively.

The Company’s financing agreements contain various restrictive financial covenants, including net debt to capitalization and net interest coverage ratios. As of December 31, 2012, the Company was in compliance with the financial and other covenants in its debt agreements.