In June 2013, the Company entered into a new credit agreement (the “2013 Credit Agreement”) that provides for a $1.1 billion revolving facility and a $300 million term loan facility. The revolving facility and term loan facility both mature on June 25, 2018 and require no scheduled prepayments before that date. The Company used $860 million of the proceeds from the 2013 Credit Agreement to repay the outstanding amounts under the Company's existing multi-borrower credit agreement dated July 2011 (the “2011 Credit Agreement”). Waters terminated the 2011 Credit Agreement early without penalty.

The interest rates applicable to the 2013 Credit Agreement are, at the Company's option, equal to either the alternate base rate calculated daily (which is a rate per annum equal to the greatest of (a) the prime rate in effect on such day, (b) the federal funds effective rate in effect on such day plus 1/2% per annum, or (c) the adjusted LIBO rate on such day (or if such day is not a business day, the immediately preceding business day) for a deposit in U.S. dollars with a maturity of one month plus 1% per annum) or the applicable 1, 2, 3 or 6 month adjusted LIBO rate, in each case, plus an interest rate margin based upon the Company's leverage ratio, which can range between 0 to 12.5 basis points for alternate base rate loans and between 75 basis points and 112.5 basis points for adjusted LIBO rate loans. The facility fee on the 2013 Credit Agreement ranges between 12.5 basis points and 25 basis points. The 2013 Credit Agreement requires that the Company comply with an interest coverage ratio test of not less than 3.50:1 as of the end of any fiscal quarter for any period of four consecutive fiscal quarters and a leverage ratio test of not more than 3.50:1 as of the end of any fiscal quarter. In addition, the 2013 Credit Agreement includes negative covenants, affirmative covenants, representations and warranties and events of default that are customary for investment grade credit facilities.

At December 31, 2013, $125 million of the outstanding portions of the revolving facilities have been classified as short-term liabilities in the consolidated balance sheet due to the fact that the Company expects to utilize this portion of the revolving line of credit to fund its working capital needs within the next twelve months and can repay and re-borrow from the facility without penalty. The remaining $490 million of the outstanding portions of the revolving facilities have been classified as long-term liabilities in the consolidated balance sheet, as no repayments are required prior to the maturity date in 2018 and this portion is not expected to be repaid within the next twelve months.

During the year ended December 31, 2011, the Company issued and sold senior unsecured notes with a face value of $200 million. At both December 31, 2013 and 2012, the Company had a total of $400 million of outstanding senior unsecured notes. Interest on the senior unsecured notes is payable semi-annually each year. The Company may prepay all or some of the senior unsecured notes at any time in an amount not less than 10% of the aggregate principal amount outstanding, plus the applicable make-whole amount. In the event of a change in control (as defined in the note purchase agreement) of the Company, the Company may be required to prepay the senior unsecured notes at a price equal to 100% of the principal amount thereof, plus accrued and unpaid interest. These senior unsecured notes require that the Company comply with an interest coverage ratio test of not less than 3.50:1 for any period of four consecutive fiscal quarters and a leverage ratio test of not more than 3.50:1 as of the end of any fiscal quarter. In addition, these senior unsecured notes include customary negative covenants, affirmative covenants, representations and warranties and events of default.

The Company had the following outstanding debt at December 31, 2013 and 2012 (in thousands):

		December 31,
		2013		2012
Foreign subsidiary lines of credit		$	8,346	$	7,781
Credit agreements			125,000		125,000
	Total notes payable and debt		133,346		132,781

Senior unsecured notes - Series A - 3.75%, due February 2015			100,000		100,000
Senior unsecured notes - Series B - 5.00%, due February 2020			100,000		100,000
Senior unsecured notes - Series C - 2.50%, due March 2016			50,000		50,000
Senior unsecured notes - Series D - 3.22%, due March 2018			100,000		100,000
Senior unsecured notes - Series E - 3.97%, due March 2021			50,000		50,000
Credit agreements			790,000		645,000
	Total long-term debt		1,190,000		1,045,000

Total debt		$	1,323,346	$	1,177,781

As of December 31, 2013 and 2012, the Company had a total amount available to borrow under the existing credit agreements of $483 million and $428 million, respectively, after outstanding letters of credit. The weighted-average interest rates applicable to the senior unsecured notes and credit agreement borrowings collectively were 1.94% and 2.11% at December 31, 2013 and 2012, respectively.

The Company and its foreign subsidiaries also had available short-term lines of credit totaling $87 million and $107 million at December 31, 2013 and 2012, respectively, for the purpose of short-term borrowing and issuance of commercial guarantees. The weighted-average interest rates applicable to the short-term borrowings were 2.00% at both December 31, 2013 and 2012.