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Off-Balance Sheet Arrangements

12 Months Ended

Dec. 31, 2015

12.

OFF—BALANCE SHEET ARRANGEMENTS

Performance obligations of certain operating subsidiaries are supported by performance bonds and letters of credit. These obligations will expire at various dates through May 2017 and are renewed as required. The outstanding commitments on these obligations at December 31, 2015 and 2014 were $5.6 million and $5.5 million, respectively.