Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2014

Commitments and Contingencies Disclosure [Abstract]

Financial guarantee exposure summary

A summary of the Company's outstanding financial guarantee exposures at June 30, 2014 and December 31, 2013 is as follows:

Financial Guarantee Exposure Summary (U.S. dollars in thousands except number of contracts and term to maturity)	June 30, 2014		December 31, 2013
Opening number of financial guarantee contracts	3		4
Number of financial guarantee contracts matured, prepaid or commuted during the period	—		(1		)
Closing number of financial guarantee contracts	3		3
Principal outstanding	$	108,255	$	108,255
Interest outstanding	$	—	$	—
Aggregate exposure outstanding	$	108,255	$	108,255
Total gross claim liability recorded	$	—	$	—
Total unearned premiums and fees recorded	$	61	$	134
Weighted average contractual term to maturity in years	25.6		26.0