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Contractual interest rate for funds borrowed, under the debt agreement.

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Debt - Schedule of Debt (Details) - USD ($)	Jun. 30, 2019	Dec. 31, 2018	Dec. 21, 2017
Debt Instrument [Line Items]
Principal amount of long-term debt	$ 672,973,000	$ 416,466,000
Less: unamortized discount and deferred financing costs	(28,877,000)	(23,826,000)
Total debt, net of unamortized discount and deferred financing costs	644,096,000	392,640,000
Less: current maturities	(12,295,000)	(33,000)
Long-term debt, net of current maturities	$ 631,801,000	392,607,000
5.00% Convertible Senior Notes due 2021
Debt Instrument [Line Items]
Debt instrument, interest rate	5.00%
7.75% Senior Secured Note due 2025
Debt Instrument [Line Items]
Debt instrument, interest rate	7.75%
Convertible Debt \| 5.00% Convertible Senior Notes due 2021
Debt Instrument [Line Items]
Debt instrument, interest rate	5.00%
Principal amount of long-term debt	$ 79,895,000	115,000,000
Less: unamortized discount and deferred financing costs	$ (8,300,000)
Senior Notes \| 7.75% Senior Secured Note due 2025
Debt Instrument [Line Items]
Debt instrument, interest rate	7.75%		7.75%
Principal amount of long-term debt	$ 300,000,000	300,000,000	$ 300,000,000
Term Loan \| Mid Pac Term Loan
Debt Instrument [Line Items]
Principal amount of long-term debt	1,449,000	1,466,000
Term Loan \| Term Loan B Facility
Debt Instrument [Line Items]
Principal amount of long-term debt	246,875,000	0
Term Loan \| Retail Property Term Loan
Debt Instrument [Line Items]
Principal amount of long-term debt	44,754,000	0
Revolving Credit Facility \| ABL Revlover
Debt Instrument [Line Items]
Principal amount of long-term debt	0	0
Letters of credit outstanding, amount	100,000	$ 13,500,000
Letters of Credit and Surety Bonds
Debt Instrument [Line Items]
Letters of credit outstanding, amount	$ 3,700,000