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Off-Balance Sheet Arrangements

12 Months Ended

Dec. 31, 2016

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 December 2019 and are renewed as required. The outstanding commitments on these obligations at December 31, 2016 and 2015 were $5.4 million and $5.6 million, respectively.