The price per share of the conversion feature embedded in the debt instrument.

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Ratio applied to the conversion of debt instrument into equity with equity shares divided by debt principal amount.

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Face (par) amount of debt instrument at time of issuance.

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

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Subsequent Events - Additional Information (Details)	3 Months Ended
Subsequent Events - Additional Information (Details)	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($) $ / shares	Dec. 31, 2018 USD ($)	Sep. 10, 2016 USD ($)
Debt Instrument [Line Items]
Interest rate percentage		6.00%
Current portion of debt		$ 337,583,000	$ 29,848,000
Subsequent Event
Debt Instrument [Line Items]
Current portion of debt	$ 70,000,000
Senior Notes Due 2027 \| Subsequent Event \| Senior secured notes
Debt Instrument [Line Items]
Debt face amount	$ 70,000,000
Interest rate percentage	10.25%
Convertible Promissory Notes Interest Rate 6% Due December 2020, Recourse \| Convertible promissory notes
Debt Instrument [Line Items]
Debt face amount				$ 260,000,000
Interest rate percentage		6.00%
Current portion of debt		$ 273,410,000	$ 0
Convertible stock price (in dollars per share) \| $ / shares		$ 11.25
Convertible Promissory Notes Interest Rate 6% Due December 2020, Recourse, Amendment \| Convertible promissory notes
Debt Instrument [Line Items]
Convertible stock price (in dollars per share) \| $ / shares		$ 8
Convertible Promissory Notes Interest Rate 6% Due December 2020, Recourse, Amendment \| Subsequent Event \| Convertible promissory notes
Debt Instrument [Line Items]
Interest rate percentage	10.00%
Conversion ratio	0.125000
Additional Convertible Notes \| Subsequent Event \| Convertible debt
Debt Instrument [Line Items]
Debt face amount	$ 30,000,000
Period One \| Senior Notes Due 2027 \| Subsequent Event \| Senior secured notes
Debt Instrument [Line Items]
Redemption price	108.00%
Period Two \| Senior Notes Due 2027 \| Subsequent Event \| Senior secured notes
Debt Instrument [Line Items]
Redemption price	104.00%
Period Three \| Senior Notes Due 2027 \| Subsequent Event \| Senior secured notes
Debt Instrument [Line Items]
Redemption price	102.00%
Period Four \| Senior Notes Due 2027 \| Subsequent Event \| Senior secured notes
Debt Instrument [Line Items]
Redemption price	100.00%
Period Five \| Senior Notes Due 2027 \| Subsequent Event \| Senior secured notes
Debt Instrument [Line Items]
Redemption price	101.00%