DEBT

Long-term debt consisted of the following:



In thousands
	March 31, 2014		December 31, 2013
Obligations under capital leases	$	6,324	$	7,343
$1 billion senior credit facility weighted average rate 1.82%, due in 2016	218,301		272,358
$100 million private placement notes 5.64%, due in 2015	100,000		100,000
$175 million private placement notes 3.89%, due in 2017	175,000		175,000
$125 million private placement notes 2.68%, due in 2019	125,000		125,000
$225 million private placement notes 4.47%, due in 2020	225,000		225,000
$125 million private placement notes 3.26%, due in 2022	125,000		125,000
Acquisition notes weighted average rate of 2.28% and weighted average maturity of 3.6 years	251,196		252,195
Foreign bank debt weighted average rate 8.48% and weighted average maturity of 1.8 years	144,557		149,147
Total debt	1,370,378		1,431,043
Less: current portion of total debt	124,307		150,380
Long-term portion of total debt	$	1,246,071	$	1,280,663

Our $1.0 billion senior credit facility maturing in September 2016, our $100.0 million private placement notes maturing April 2015, our $175.0 million private placement notes maturing in October 2017, our $125.0 million private placement notes maturing in December 2019, our $225.0 million private placement notes maturing in October 2020, and our $125.0 million private placement notes maturing in December 2022, all require us to comply with various financial, reporting and other covenants and restrictions, including a restriction on dividend payments. The financial debt covenants are the same for the senior credit facility and the private placement notes. At March 31, 2014, we were in compliance with all of our financial debt covenants.

As of March 31, 2014 and December 31, 2013 we had $151.2 million and $155.0 million, respectively, committed to outstanding letters of credit under our senior credit facility. The unused portion of the revolving credit facility as of March 31, 2014 and December 31, 2013 was $630.5 million and $572.6 million, respectively.

Guarantees

Shiraishi-Sogyo Co. Ltd. (“Shiraishi”) is an unrelated party in Japan that is expanding its medical waste management business. We have guaranteed Shiriashi’s loan of $4.8 million borrowed from JPMorganChase Bank N.A. which is currently due on May 31, 2014. Based on information currently available, we have concluded the guarantee is not probable of being called and, therefore, we have not recorded any contingent liability relating to this guarantee. We have also extended non-interest bearing loans to Shiraishi for approximately $15.5 million due April 18, 2018, which are reflected in the Condensed Consolidated Balance Sheet as part of long term "Other assets" at March 31, 2014 and December 31, 2013. There is a collateral agreement in place on the assets of Shiraishi and related companies in support of amounts owed to the Company.