Notes Payable and Debt and Financing Arrangements (Tables)

6 Months Ended

Jun. 30, 2013

The Company's letter of credit facilities and revolving credit facilities at June 30, 2013 and December 31, 2012 were as follows:



Letter of Credit Summary: (U.S. dollars in thousands except percentages)	June 30, 2013 (1)			December 31, 2012 (1)
Revolving credit facility (2)	$	1,000,000		$	1,000,000
Available letter of credit facilities - commitments (3)	$	4,275,000		$	4,000,000
Available letter of credit facilities - in use	$	1,891,969		$	1,757,250
Collateralized by certain assets of the Company’s investment portfolio	85.5		%	93.3		%

____________


(1)	At June 30, 2013, there were six available letter of credit facilities; at December 31, 2012, there were five available letter of credit facilities.

(2)

At June 30, 2013 and December 31, 2012, the revolving credit available under the December 2011 Credit Agreements (defined below) was unutilized. The credit agreement with Citicorp USA, Inc., as administrative agent and issuing lender, and the lenders party thereto, as amended (the "2013 Credit Agreement"), provides for issuance of letters of credit and revolving credit loans up to $275 million. At June 30, 2013, $275 million of letters of credit were issued under the 2013 Credit Agreement and therefore such amount is not included here.

(3)

The Company has the option to increase the size of the March 2011 Credit Agreement by an additional $500 million, the size of the facilities under the December 2011 Credit Agreements by an additional $500 million across both such facilities and the maximum amount of the letters of credit and revolving credit loans available under the 2013 Credit Agreement, with the lender's and issuing lender's consent.