Basis of Presentation - Additional Information (Details) $ in Millions	Dec. 31, 2015 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Reclassification from Prepaid expenses and other current assets to Notes receivable, insurance companies	$ 6.7
Reclassification from Other noncurrent assets to Notes receivable, insurance companies, non-current	$ 1.9