Notes Payable and Debt and Financing Arrangements (Tables)

3 Months Ended

Mar. 31, 2015

The Company’s letter of credit facilities and revolving credit facilities at March 31, 2015 and December 31, 2014 were as follows:



Letter of Credit Summary: (U.S. dollars in thousands except percentages)	March 31, 2015 (1)			December 31, 2014 (1)
Revolving credit facility (2)	$	1,000,000		$	1,000,000
Available letter of credit facilities - commitments (3)	$	3,575,000		$	3,575,000
Available letter of credit facilities - in use	$	1,743,230		$	1,790,561
Collateralized by certain assets of the Company’s investment portfolio	65.7		%	66.2		%

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(1)	As of March 31, 2015 and December 31, 2014, there were eight available letter of credit facilities.

(2)

As of March 31, 2015 and December 31, 2014, the $1 billion of revolving credit available under the November 2013 unsecured credit agreements, which currently provide an aggregate amount for issuance of letters of credit and revolving credit loans up to $2 billion, was unutilized. The credit agreements entered into with Citicorp USA, Inc. in May through November 2013 (the "Citi Agreements") provide for issuance of letters of credit and revolving credit loans up to an aggregate amount of $575.0 million. As of March 31, 2015, $575.0 million of letters of credit were issued under these agreements and therefore such amount is not included in this line.

(3)

The available letter of credit facilities include $1 billion that is also included in the "revolving credit facility" line in this table, as part of the November 2013 credit agreements, which currently provide an aggregate amount of outstanding letters of credit and revolving credit loans of up to $2 billion. The Company has the option to increase the size of the facilities under these agreements by an additional $500 million across such facilities. The Company also has the option to increase the maximum amount of the letters of credit and revolving credit loans available under the 2013 credit agreements with Citicorp USA, Inc. with the lender's and issuing lender's consent.