Notes and Other Receivables (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable	$ 40,970	$ 19,285
Short term bridge loan	4,700	3,100
Note receivable, secured, bearing interest at 10.75%, due December 2020 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable	$ 17,685	0
Stated interest rate (in hundredths)	10.75%
Related party note receivable, secured, bearing interest at 9.5%, due October 2019 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable	$ 6,593	0
Stated interest rate (in hundredths)	9.50%
Note receivable, secured, bearing interest at 6.0%, due December 2016 [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable	$ 0	3,219
Stated interest rate (in hundredths)	6.00%
Notes and other receivables from affiliates [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable	$ 4,695	3,092
Other receivables [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable	$ 11,997	$ 12,974