Convertible Debt and Notes Payable - Scheduled Maturities (Details) - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2020	Dec. 31, 2019
Repayments on long-term and short-term borrowings
Convertible debt	[1]	$ 119,929	$ 118,688
Note payable		307,019	306,818
Loans Payable to Bank		32,180	32,180
Other Notes Payable		4,719	2,516
Future minimum lease payments for capital lease obligations
2020		922
2021		1,394
2022		1,163
2023		411
2024		11
Thereafter		0
Subtotal		3,901
Capital Leases, Future Minimum Payments, Interest Included in Payments	[2]	288
Capital lease obligations		3,613	$ 3,937
Spike Line
Repayments on long-term and short-term borrowings
Subtotal		35,000
Long-term Debt and Short-term Borrowings, Amount Representing Interest		0
Future minimum lease payments for capital lease obligations
Line of Credit, Current		35,000
Repayments of Short-term Debt		35,000
Long-term Debt and Short-term Borrowings, Repayments		35,000
Long-term Debt and Short-term Borrowings, Amount Representing Interest		0
Revolving Credit Facility
Repayments on long-term and short-term borrowings
Subtotal		25,101
Long-term Debt and Short-term Borrowings, Amount Representing Interest		101
Future minimum lease payments for capital lease obligations
Line of Credit, Current		25,000
Repayments of Short-term Debt		25,101
Long-term Debt and Short-term Borrowings, Repayments		25,101
Long-term Debt and Short-term Borrowings, Amount Representing Interest		101
Convertible Debt
Repayments on long-term and short-term borrowings
2020		4,050
2021		4,050
2022		139,050
2023		0
2024		0
Thereafter		0
Subtotal		147,150
Long-term Debt and Short-term Borrowings, Amount Representing Interest	[2]	27,221
Future minimum lease payments for capital lease obligations
Long-term Debt and Short-term Borrowings, Repayments		147,150
Long-term Debt and Short-term Borrowings, Amount Representing Interest	[2]	27,221
Senior Notes
Repayments on long-term and short-term borrowings
2020		19,075
2021		23,548
2022		23,548
2023		23,548
2024		98,721
Thereafter		334,304
Subtotal		522,744
Long-term Debt and Short-term Borrowings, Amount Representing Interest	[2]	215,725
Note payable		307,019
Future minimum lease payments for capital lease obligations
Long-term Debt and Short-term Borrowings, Repayments		522,744
Long-term Debt and Short-term Borrowings, Amount Representing Interest	[2]	215,725
Loans
Repayments on long-term and short-term borrowings
2020		32,596
2021		0
2022		0
2023		0
2024		0
Thereafter		0
Subtotal		32,596
Long-term Debt and Short-term Borrowings, Amount Representing Interest	[2]	416
Future minimum lease payments for capital lease obligations
Long-term Debt and Short-term Borrowings, Repayments		32,596
Long-term Debt and Short-term Borrowings, Amount Representing Interest	[2]	416
Insurance Note and Aircraft
Repayments on long-term and short-term borrowings
2020		2,799
2021		593
2022		593
2023		593
2024		543
Thereafter		0
Subtotal		5,121
Long-term Debt and Short-term Borrowings, Amount Representing Interest	[2]	402
Future minimum lease payments for capital lease obligations
Long-term Debt and Short-term Borrowings, Repayments		5,121
Long-term Debt and Short-term Borrowings, Amount Representing Interest	[2]	$ 402

[1] The carrying amount of the convertible debt includes an unamortized discount of $13.7 million and $14.9 million as of March 31, 2020 and December 31, 2019, respectively.

[2] Amount necessary to reduce net minimum payments to present value calculated at the Company's implicit rate at inception. This amount also includes capitalized debt costs and the unamortized discount on the Company's convertible debt.