Investments in Unconsolidated Affiliates (Details) - USD ($)	1 Months Ended				3 Months Ended		12 Months Ended
	Dec. 31, 2017	Feb. 28, 2017	Apr. 30, 2016	Jan. 31, 2016	Sep. 30, 2017	Jun. 30, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Schedule of Equity Method Investments [Line Items]
Impairment of investments in unconsolidated affiliates							$ 0	$ 0	$ 2,500,000
Loss on deconsolidation of subsidiary							0	0	3,505,000
Proceeds from sales of AREC assets							0	0	$ 2,775,000
Receivable							94,534,000	85,197,000
AREC
Schedule of Equity Method Investments [Line Items]
Loss on deconsolidation of subsidiary						$ 1,600,000
Proceeds from sales of AREC assets	$ 2,800,000						1,000,000.0
Receivable								$ 400,000
AREC | Disposal Group, Held-for-sale, Not Discontinued Operations
Schedule of Equity Method Investments [Line Items]
Gain (loss) on disposal					$ (1,900,000)		$ 600,000
Bencap LLC
Schedule of Equity Method Investments [Line Items]
Maximum borrowing amount				$ 1,500,000
Income tax benefit										$ 800,000
Percentage of equity method investment							0.00%
VestaCare, Inc.
Schedule of Equity Method Investments [Line Items]
Voting interest			3.00%
Impairment of investments in unconsolidated affiliates					$ 2,500,000
Percentage of equity method investment			15.00%				15.00%
Bencap LLC
Schedule of Equity Method Investments [Line Items]
Voting interest				30.00%
Cash payment for acquisition				$ 2,200,000
Recognized net loss from investment										1,400,000
Impairment of investments in unconsolidated affiliates										1,700,000
Losses from equity investment										$ 500,000
Additional funding request		$ 500,000
VestaCare, Inc.
Schedule of Equity Method Investments [Line Items]
Cash payment for acquisition			$ 2,500,000