Debt (Details)											1 Months Ended															3 Months Ended				6 Months Ended			12 Months Ended
		Jun. 02, 2021 USD ($)	Oct. 20, 2020 USD ($)	Oct. 16, 2020 USD ($)	Sep. 30, 2020 USD ($)	Jun. 12, 2020 USD ($)	Aug. 09, 2019 USD ($)	Nov. 01, 2018 USD ($) $ / shares	Jul. 26, 2018 USD ($)	Nov. 07, 2017 USD ($)	Jun. 30, 2021 USD ($) $ / shares shares	May 31, 2021 USD ($) shares	Mar. 31, 2021 USD ($) shares	Dec. 31, 2020 USD ($) $ / shares shares	Nov. 30, 2020 USD ($) shares	Oct. 31, 2020 USD ($) shares	Aug. 31, 2020 USD ($) shares	Jun. 30, 2020 USD ($) shares	Aug. 31, 2019 USD ($) $ / shares	Aug. 31, 2018 USD ($)	Jul. 31, 2018 USD ($)	Aug. 31, 2017 USD ($)	Jan. 31, 2016 USD ($)	Jun. 30, 2014 USD ($) $ / shares	Jul. 31, 2013 USD ($) $ / shares	Jun. 30, 2021 USD ($) $ / shares	Mar. 31, 2021 USD ($)	Jun. 30, 2020 USD ($)	Jun. 30, 2017 USD ($) shares	Jun. 30, 2021 USD ($) $ / shares	Jun. 30, 2020 USD ($)	Jun. 30, 2017 USD ($) shares	Dec. 31, 2016 USD ($)	Feb. 09, 2021 $ / shares	Feb. 05, 2021 USD ($)	Aug. 09, 2020 $ / shares	Jul. 09, 2020 $ / shares	Feb. 09, 2020 $ / shares	Aug. 01, 2018 USD ($)	Mar. 31, 2017 USD ($)
Debt (Details) [Line Items]
Gain (Loss) on Extinguishment of Debt																										$ (7,351,000)		$ 0		$ (7,351,000)	$ 0
Common Stock, Par or Stated Value Per Share (in Dollars per share) | $ / shares											$ 0.001			$ 0.001												$ 0.001				$ 0.001							$ 0.001
Paid-in-Kind Interest																														$ 1,598,000	2,277,000
Stock Issued During Period, Value, Conversion of Convertible Securities																										$ 14,241,000	$ 5,631,000	9,473,000
Liabilities, Fair Value Adjustment																										$ (3,797,000)		(7,727,000)		(12,844,000)	(52,000)
Repayments of Debt																														125,805,000	0
Amortization of Debt Discount (Premium)																														1,230,000	1,388,000
Proceeds from Issuance of Long-term Debt																														$ 96,306,000	0
Closing Fees [Member]
Debt (Details) [Line Items]
Debt Issuance Costs, Gross		$ 2,200,000
Other Administrative Fees [Member]
Debt (Details) [Line Items]
Debt Issuance Costs, Gross		$ 500,000
3.25% Convertible Senior Notes Due 2023 [Member]
Debt (Details) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage											3.25%											3.25%				3.25%				3.25%
Value of debt outstanding											$ 27,400,000			$ 34,100,000												$ 27,400,000				$ 27,400,000
Debt Instrument, Face Amount									$ 8,000,000.0
Debt Instrument, Convertible, Conversion Price (in Dollars per share) | $ / shares																			$ 1.00															$ 5.647		$ 5.647	$ 10.00	$ 1.00
Debt Conversion, Converted Instrument, Shares Issued (in Shares) | shares											885,425	354,170	531,255	177,085	708,340	354,170	177,085	710,100
Debt Instrument, Redemption Price, Percentage																			105.00%
Interest rate if paid cash																						3.25%
Interest rate if paid stock																						5.00%
Interest rate if paid in-kind																						2.75%
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger																			30.00%
Debt Instrument, Convertible, Threshold Percentage of Market Price Trigger																			150.00%
Equity Method Investment, Ownership Percentage																			49.00%
Debt Conversion, Converted Instrument, Amount											$ 5,000,000.0	$ 2,000,000.0	$ 3,000,000.0	$ 1,000,000.0	$ 4,000,000.0	$ 2,000,000.0	$ 1,000,000.0	$ 7,100,000
Paid-in-Kind Interest											245,040	93,805	128,230	36,528	138,248	63,225	27,288	200,000
Stock Issued During Period, Value, Conversion of Convertible Securities																		$ 9,500,000
Adjustments to Additional Paid in Capital, Other											10,300,000	$ 4,000,000.0	$ 5,600,000	1,400,000	$ 5,400,000	$ 2,600,000	$ 1,300,000
3.25% Convertible Senior Notes Due 2023 [Member] | Reported Value Measurement [Member]
Debt (Details) [Line Items]
Value of debt outstanding											13,300,000			22,900,000												13,300,000				13,300,000
Interest Payable											700,000			900,000												700,000				700,000
4.25% Convertible Senior Notes (due 2018) [Member]
Debt (Details) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage																						4.25%			4.25%
Debt Instrument, Face Amount									$ 8,000,000.0													$ 21,600,000			$ 100,000,000.0
Debt Instrument, Convertible, Conversion Ratio																									114.3674
Debt Instrument, Convertible, Incremental Value of Principal Converted																									$ 1,000
Debt Instrument, Convertible, Conversion Price (in Dollars per share) | $ / shares																									$ 8.74
Debt Instrument, Repurchase Amount																													$ 12,000,000.0			$ 12,000,000.0	$ 6,100,000							$ 39,100,000
Write off of Deferred Debt Issuance Cost																													100,000				$ 100,000
Repayments of Convertible Debt																																$ 24,100,000
Debt Conversion, Converted Instrument, Shares Issued (in Shares) | shares																																290,000
Gain (Loss) on Extinguishment of Debt																													100,000
Interest rate if paid cash									3.25%
Interest rate if paid stock									5.00%
Interest rate if paid in-kind									2.75%
Debt Conversion, Converted Instrument, Amount																					$ 8,000,000.0
3.25% Convertible Senior Notes (due 2020) [Member]
Debt (Details) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage									3.25%													3.25%
Debt Instrument, Face Amount									$ 8,000,000.0
Debt Instrument, Convertible, Conversion Ratio									322.2688
Debt Instrument, Redemption Price, Percentage								105.00%
4.875% Convertible Senior Notes Due 2020 [Member]
Debt (Details) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage													4.875%											4.875%			4.875%
Value of debt outstanding																			$ 111,100,000
Debt Instrument, Face Amount																			113,000,000.0					$ 115,000,000.0
Debt Instrument, Convertible, Conversion Ratio																								103.7613
Debt Instrument, Convertible, Incremental Value of Principal Converted																								$ 1,000
Debt Instrument, Convertible, Conversion Price (in Dollars per share) | $ / shares																								$ 9.64
Debt Instrument, Repurchase Amount																							$ 2,000,000.0
Write off of Deferred Debt Issuance Cost							$ 700,000																100,000
Gain (Loss) on Extinguishment of Debt							(2,400,000)																$ 100,000
Debt Instrument, Original Amount Of Debt Refinanced																			103,800,000
Debt Instrument, Amount Of Accrued Interest Refinanced																			1,000,000.0
Debt Instrument, Amount Of Debt Exchanged Into A New Instrument																			$ 7,300,000
Benefit Street Partners [Member]
Debt (Details) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.25%
Debt Instrument, Face Amount																																			$ 11,000,000.0
Debt Issuance Costs, Gross											1,000,000.0															1,000,000.0				1,000,000.0
Amortization of Debt Issuance Costs																														14,094
Debt Instrument, Unamortized Discount											2,300,000															2,300,000				2,300,000
Amortization of Debt Discount (Premium)																														30,342
Long-term Debt, Fair Value											99,000,000.0															99,000,000.0				99,000,000.0
New Term Loan Agreement [Member] | Secured Debt [Member]
Debt (Details) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage																			10.50%
Value of debt outstanding	[1]													119,801,000
Interest Payable											200,000			4,700,000												200,000				200,000
Interest rate if paid cash																			8.00%
Interest rate if paid in-kind																			2.50%
Paid-in-Kind Interest			$ 300,000
Long-term Debt											10,700,000			111,330,000												10,700,000				10,700,000
Line of Credit Facility, Maximum Borrowing Capacity																			$ 134,800,000
Debt Instrument, Covenant Compliance, EBITDA Requirment				$ 25,000,000.0	$ 34,000,000.0
Debt Instrument, Covenant Compliance, Minimum Liquidity					$ 10,000,000.0
Debt, Pre-payment				15,000,000.0
Repayments of Debt			$ 15,000,000.0
Notes Payable														124,500,000
Notes Payable, Current														5,000,000.0
Notes Payable, Noncurrent														114,800,000
Debt Issuance Costs, Gross											3,800,000															3,800,000				3,800,000
Amortization of Debt Issuance Costs																										200,000		300,000		400,000	500,000
Debt Instrument, Unamortized Discount							$ 10,100,000
Amortization of Debt Discount (Premium)																										500,000		700,000		1,200,000	$ 1,400,000
Long-term Debt, Fair Value														$ 129,600,000
New Term Loan Agreement [Member] | Secured Debt [Member] | Payment No Later than Third Quarter 2021 [Member]
Debt (Details) [Line Items]
Debt, Pre-payment				$ 5,000,000.0
Initial Term Loan [Member]
Debt (Details) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.25%
Interest Payable											700,000															700,000				700,000
Debt Instrument, Face Amount		$ 99,000,000.0
Long-term Debt											14,100,000															14,100,000				14,100,000
Proceeds from Issuance of Long-term Debt		$ 96,300,000
Debt Instrument, Covenant Description		the Company must maintain a minimum cash balance of not less than $20.0 million. The minimum cash balance can be reduced to $15.0 million in increments of $1.0 million for every $5.0 million in principal repayment of the 2021 BSP Term Loan
Initial Term Loan [Member] | Secured Debt [Member]
Debt (Details) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage		3.25%
Debt Instrument, Face Amount		$ 99,000,000.0
Proceeds from Issuance of Long-term Debt		96,300,000																												99,000,000.0
Initial Term Loan [Member] | Secured Debt [Member] | Closing Fees [Member]
Debt (Details) [Line Items]
Debt Issuance Costs, Gross		2,200,000
Initial Term Loan [Member] | Secured Debt [Member] | Other Administrative Fees [Member]
Debt (Details) [Line Items]
Debt Issuance Costs, Gross		500,000
Delayed Draw Term Loan [Member]
Debt (Details) [Line Items]
Debt Instrument, Face Amount		19,000,000.0
Delayed Draw Term Loan [Member] | Secured Debt [Member]
Debt (Details) [Line Items]
Debt Instrument, Face Amount		$ 19,000,000.0
Paycheck Protection Program Loan [Member]
Debt (Details) [Line Items]
Notes Payable											6,200,000															6,200,000				6,200,000
Paycheck Protection Program Loan [Member] | Unsecured Debt [Member]
Debt (Details) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage						1.00%
Debt Instrument, Face Amount						$ 6,200,000
Monthly payments						$ 261,275
Long-term Debt, Current Maturities											$ 6,200,000															6,200,000				6,200,000
Common Stock [Member]
Debt (Details) [Line Items]
Stock Issued During Period, Value, Conversion of Convertible Securities																										$ 1,000		$ 1,000
Common Stock [Member] | 4.25% Convertible Senior Notes (due 2018) [Member]
Debt (Details) [Line Items]
Debt Instrument, Repurchase Amount																													$ 11,600,000			$ 11,600,000
Debt Conversion, Converted Instrument, Shares Issued (in Shares) | shares																													11,240
Oasis Management And Oasis Investments ll Master Fund Ltd. [Member]
Debt (Details) [Line Items]
Common Stock, Par or Stated Value Per Share (in Dollars per share) | $ / shares																			$ 0.001
Oasis Management And Oasis Investments ll Master Fund Ltd. [Member] | 3.25% Convertible Senior Notes Due 2023 [Member]
Debt (Details) [Line Items]
Debt Instrument, Face Amount																			$ 8,000,000.0			$ 21,600,000
Debt Instrument, Principal Amount, Redeemed																																							$ 13,200,000
Paid-in-Kind Interest																														7,700,000
Oasis Management And Oasis Investments ll Master Fund Ltd. [Member] | 3.25% Convertible Senior Notes (due 2020) [Member]
Debt (Details) [Line Items]
Debt Instrument, Interest Rate, Stated Percentage																						3.25%
Debt Instrument, Face Amount																						$ 21,600,000
Debt Instrument, Convertible, Conversion Ratio								393.7008														328.0302
Debt Instrument, Convertible, Incremental Value of Principal Converted								$ 1,000												$ 1,000
Debt Instrument, Convertible, Conversion Price (in Dollars per share) | $ / shares								$ 2.54
Gain (Loss) on Extinguishment of Debt									$ (500,000)	$ (600,000)									$ (10,400,000)
Liabilities, Fair Value Adjustment																														$ 3,800,000
London Interbank Offered Rate (LIBOR) [Member] | Initial Term Loan [Member] | Secured Debt [Member]
Debt (Details) [Line Items]
Debt Instrument, Description of Variable Rate Basis		subject to a 1.00% LIBOR floor, or (ii) base rate plus 5.50% - 6.00% (determined by reference to a net leverage pricing grid), subject to a 2.00% base rate floor
London Interbank Offered Rate (LIBOR) [Member] | Initial Term Loan [Member] | Minimum [Member]
Debt (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate		6.50%
Debt Instrument, Description of Variable Rate Basis		subject to a 1.00% LIBOR floor, or (ii) base rate plus 5.50% - 6.00% (determined by reference to a net leverage pricing grid), subject to a 2.00% base rate floor
London Interbank Offered Rate (LIBOR) [Member] | Initial Term Loan [Member] | Minimum [Member] | Secured Debt [Member]
Debt (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate		6.50%
London Interbank Offered Rate (LIBOR) [Member] | Initial Term Loan [Member] | Maximum [Member]
Debt (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate		7.00%
London Interbank Offered Rate (LIBOR) [Member] | Initial Term Loan [Member] | Maximum [Member] | Secured Debt [Member]
Debt (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate		7.00%

[1] The amount presented excludes accrued, but unpaid, PIK interest of $4.7 million as of December 31, 2020.