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Emergence from Voluntary Reorganization under Chapter 11 / Fresh Start Accounting (Details) $ / shares in Units, $ in Thousands					1 Months Ended	2 Months Ended	3 Months Ended		5 Months Ended	6 Months Ended
	Jun. 30, 2020 USD ($)	May 31, 2020 USD ($) $ / shares shares	May 29, 2020 USD ($) shares	Feb. 28, 2020 USD ($)	Jun. 30, 2020 USD ($)	May 31, 2020 USD ($) shares	Mar. 31, 2020 USD ($)	Jun. 30, 2019 USD ($)	May 31, 2020 USD ($) shares	Jun. 30, 2019 USD ($)	Aug. 07, 2020 USD ($)	Mar. 01, 2020
Debt Instrument [Line Items]
Percent of ordinary shares exchanged for cancelled notes			94.25%
Percent of ordinary shares issued to common holders			5.75%
Common Stock, Issued, Conversion Ratio			0.0006849838
Pre-petition restructuring charges					$ 0	$ (252)		$ 0	$ 16,822	$ 0
Fair value of Successor stockholders' equity		$ 18,084				$ 18,084			$ 18,084
Postconfirmation Common Stock Per Share Value \| $ / shares		$ 17.23
Convertible Debt [Member]
Debt Instrument [Line Items]
Rights offering commitment amount			$ 9,600				$ 9,600
Debt Instrument, Face Amount	$ 129,771		$ 129,771		129,771
Debt Instrument, Interest Rate, Stated Percentage			5.00%
Debt Instrument, Convertible, Number of Equity Instruments \| shares			9,732,825
Debt Instrument, Required Repurchase Due to Change in Control, Redemption Price, Percentage			100.00%
Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	78,125		$ 78,100		78,125
Debt Instrument, Required Repurchase Due to Change in Control, Redemption Price, Percentage			101.00%
Debt Instrument, Issuer's Optional Repurchase Due to Change in Control Prior to June 1, 2022, Redemption Price, Percentage			103.00%
Common Stock [Member]
Debt Instrument [Line Items]
Common Stock, Shares, Issued \| shares		1,049,804	1,049,804			1,049,804			1,049,804
Restructuring Support Agreement [Member] \| Term Loan [Member]
Debt Instrument [Line Items]
Holders percentage under settlement agreement												99.00%
Restructuring Support Agreement [Member] \| Prepetition Senior Notes [Member]
Debt Instrument [Line Items]
Holders percentage under settlement agreement												75.00%
Backstop Commitment Agreement [Member]
Debt Instrument [Line Items]
Pre-petition restructuring charges							$ 9,600
Revolving Credit Facility [Member] \| Line of Credit [Member]
Debt Instrument [Line Items]
Line of credit facility, proceeds from borrowings	0
Letters of Credit Outstanding, Amount	7,100				7,100
Line of Credit Facility, Remaining Borrowing Capacity	$ 13,200				$ 13,200
Debtor-in-Possession Facility [Member] \| Line of Credit [Member]
Debt Instrument [Line Items]
Debtor-in-Possession Financing, Amount Arranged				$ 75,000
Debtor-in-Possession Financing, Term				5 months
London Interbank Offered Rate (LIBOR) [Member] \| Revolving Credit Facility [Member] \| Line of Credit [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			3.75%
London Interbank Offered Rate (LIBOR) [Member] \| Debtor-in-Possession Facility [Member] \| Line of Credit [Member]
Debt Instrument [Line Items]
Debtor-in-Possession Financing, Basis Spread on Borrowings Outstanding				200
Base Rate [Member] \| Revolving Credit Facility [Member] \| Line of Credit [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			2.75%
Minimum [Member] \| Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Covenant Compliance, Asset Coverage Ratio, Required Minimum			1.5
Minimum [Member] \| Revolving Credit Facility [Member] \| Line of Credit [Member]
Debt Instrument [Line Items]
Debt Instrument, Covenant Compliance, Fixed Charge Coverage Ratio, Required Minimum			1.0
Line of Credit, Minimum Availability (as % of Maximum) to Require Additional Fixed Charge Coverage Ratio Compliance			15.00%
Line of Credit, Minimum Availability to Require Additional Fixed Charge Coverage Ratio Compliance			$ 6,000
Minimum [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Revolving Credit Facility [Member] \| Line of Credit [Member]
Debt Instrument [Line Items]
Debt instrument, reference rate, minimum			0.00%
Maximum [Member] \| Revolving Credit Facility [Member] \| Line of Credit [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity			$ 75,000
Debt Instrument, Covenant Compliance, Capital Expenditure Limitation, Percentage of Annual Budget			125.00%
Maximum [Member] \| Revolving Credit Facility [Member] \| Subsequent Event [Member] \| Line of Credit [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity											$ 40,000
Maximum [Member] \| Post-emergence revolving asset-based lending facility [Member] \| Line of Credit [Member]
Debt Instrument [Line Items]
Maximum borrowing capacity				$ 75,000
Prepetition Senior Notes [Member] \| Senior Notes [Member]
Debt Instrument [Line Items]
Accrued interest on Prepetition Senior Notes									$ 7,600
Interest Expense on Prepetition Liabilities Recognized in Statement of Operations									$ 3,100
Due on or prior to May 29, 2021 [Member] \| Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Portion of Interest due in Cash, Percentage			50.00%
Debt Instrument, Portion of Interest due In-Kind, Percentage			50.00%
Debt Instrument, Portion of Interest due in-Kind at Majority Noteholder's Election, Percentage			100.00%
Commencing up to May 15, 2024 [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			9.50%
Commencing up to May 15, 2024 [Member] \| Minimum [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, reference rate, minimum			1.50%
Commencing on or after May 15, 2024 [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Senior Notes [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			10.50%
Commencing on or after May 15, 2024 [Member] \| Minimum [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Senior Notes [Member]
Debt Instrument [Line Items]
Debt instrument, reference rate, minimum			1.50%
Consenting Noteholders [Member]
Debt Instrument [Line Items]
Rights offering commitment amount				118,000
Commitment premium				9,400
Senior Management [Member]
Debt Instrument [Line Items]
Rights offering commitment amount				1,800
Commitment premium				$ 100