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Financial Guarantees and Commitments (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Summary of financial guarantees and commitments
Letters of credit outstanding	$ 3,248	$ 3,248
Other financial guarantees	2,401	3,363
Total financial guarantees and commitments	$ 5,649	$ 6,611

This item represents a non-contingent liability for the fair value of an obligation to stand ready to perform over the term of a guaranty issued in the event that specified triggering events or conditions occur.

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