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Financing Arrangement	12 Months Ended
Financing Arrangement	Dec. 31, 2016
Financing Arrangement [Abstract]
Financing Arrangement	Financing Arrangement In connection with tax increment financing for a parking garage we constructed in 1999, we were obligated to pay fixed special assessments over a 20-year period ending in 2019. The net present value of these assessments, discounted at the 6.93% interest rate on the underlying tax increment financing, was recorded as a financing obligation and $7.4 million was classified in liabilities held for sale on our Consolidated Balance Sheets at December 31, 2015. For additional information about this tax increment financing bond, see Notes 11 and 16.