Long-Term Debt (Details) - USD ($)	3 Months Ended					6 Months Ended	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Dec. 31, 2019	Jun. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Jul. 26, 2022	Dec. 31, 2021	Mar. 11, 2021	Dec. 31, 2020	Dec. 31, 2017	Jun. 30, 2017
Debt Instrument [Line Items]
Long-term debt	$ 335,279,000						$ 335,279,000			$ 308,129,000
Long-term Debt and Capital Lease Obligations, Current	(2,150,000)						(2,150,000)			(3,107,000)
Long-term debt net of current maturities	333,129,000						333,129,000			305,022,000
Accretion Expense	$ 886,000	$ 890,000					$ 2,714,000	$ 2,637,000
Accretion Rate	4.70%						4.70%
Net gain on debt extinguishment	$ 6,398,000	10,131,000					$ 6,398,000	9,422,000
Purchases of capped calls						$ 18,787,000	$ 0	18,787,000
Cap Price of Capped Call Transaction	$ 16.58						$ 16.58
Lifetime to date - Accretion Expense							$ 7,558,000
Remaining Accretion	$ 9,064,000						9,064,000
Accretion Expense, net of extinguishment fees	383,000						2,211,000
Convertible Subordinated Debt | Convertible Senior Notes at 5.00% February 2021
Debt Instrument [Line Items]
Debt Instrument Exchange Amount				$ 35,375,000	$ 72,909,000
Convertible Subordinated Debt | Convertible Senior Notes at 5.00% November 2024
Debt Instrument [Line Items]
Debt Instrument, Face Amount	72,909,000						72,909,000			72,909,000
Debt Instrument, Fee Amount	(568,000)						(568,000)			(769,000)
Debt Instrument, Net Carrying Amount	$ 72,341,000						$ 72,341,000			72,140,000
Interest rate (as a percent)	5.00%						5.00%
Debt Instrument Repurchase Amount, Cash Paid					6,928,000
Debt Instrument, Increase, Accrued Interest	$ 911,000	911,000					$ 2,734,000	2,733,000
Percent of the Applicable Conversion Price	130.00%						130.00%
Last Reported Sales Price Period, Common Stock							20 days
Debt Instrument, Convertible, Threshold Consecutive Trading Days							30
Convertible Senior Notes, Percentage of Principal Required for Repurchase	100.00%						100.00%
Convertible Debt, Conversion Rate of Commmon Shares, Principal	$ 1,000						$ 1,000
Business Day Period							5 years
Percent of the Product of the Last Reported Sale Price, Common Shares	98.00%						98.00%
Convertible Preferred Stock, Shares Issued upon Conversion	67.6819						67.6819
Debt Instrument, Convertible, Conversion Price	$ 14.78						$ 14.78
Debt Instrument, Fee Amount					$ 1,394,000
Debt Instrument, Interest Rate, Effective Percentage	540.00%						540.00%
Debt Instrument, Interest Rate on Liability Component, Effective Percentage	8.80%						8.80%
Convertible Subordinated Debt | Series II Convertible Senior Notes at 5.00% November 2024
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 76,433,000						$ 76,433,000			79,222,000
Debt Instrument, Fee Amount	(669,000)						(669,000)			(971,000)
Debt Instrument, Net Carrying Amount	$ 75,764,000						$ 75,764,000			78,251,000
Interest rate (as a percent)	5.00%						5.00%
Debt Instrument Repurchase Amount, Cash Paid												$ 5,593,000
Debt Instrument Exchange Amount	$ 5,000,000			73,875,000
Debt Instrument, Increase, Accrued Interest	$ 879,000	923,000					$ 2,726,000	2,770,000
Percent of the Applicable Conversion Price	130.00%						130.00%
Last Reported Sales Price Period, Common Stock							20 days
Debt Instrument, Convertible, Threshold Consecutive Trading Days							30
Convertible Senior Notes, Percentage of Principal Required for Repurchase	100.00%						100.00%
Convertible Debt, Conversion Rate of Commmon Shares, Principal	$ 1,000						$ 1,000
Debt Instrument, Convertible, Threshold Trading Days							10
Percent of the Product of the Last Reported Sale Price, Common Shares	98.00%						98.00%
Convertible Preferred Stock, Shares Issued upon Conversion	67.6819						67.6819
Debt Instrument, Convertible, Conversion Price	$ 14.78						$ 14.78
Debt Instrument, Loss on Exchange			$ 709,000
Debt Instrument, Fee Amount												$ 1,505,000
Debt Instrument, Interest Rate, Effective Percentage	10.40%						10.40%
Debt Instrument, Interest Rate on Liability Component, Effective Percentage	9.00%						9.00%
Convertible Subordinated Debt | Convertible Senior Notes at 4.25% March 2026
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 83,525,000						$ 83,525,000			125,000,000
Debt Instrument, Fee Amount	(2,627,000)						(2,627,000)			(5,964,000)
Debt Instrument, Net Carrying Amount	$ 80,898,000						$ 80,898,000			119,036,000
Interest rate (as a percent)	4.25%						4.25%
Debt Instrument, Increase, Accrued Interest	$ 1,015,000	1,328,000					$ 3,671,000	2,892,000
Percent of the Applicable Conversion Price	130.00%						130.00%
Last Reported Sales Price Period, Common Stock							20 days
Debt Instrument, Convertible, Threshold Consecutive Trading Days							30
Convertible Senior Notes, Percentage of Principal Required for Repurchase	100.00%						100.00%
Convertible Debt, Conversion Rate of Commmon Shares, Principal	$ 1,000						$ 1,000
Business Day Period							5 days
Debt Instrument, Convertible, Threshold Trading Days							10
Percent of the Product of the Last Reported Sale Price, Common Shares	98.00%						98.00%
Convertible Preferred Stock, Shares Issued upon Conversion	94.6096						94.6096
Debt Instrument, Convertible, Conversion Price	$ 10.57						$ 10.57
Debt Instrument, Fee Amount											$ 5,697,000
Capped Call Options, Outstanding	125,000						125,000
Debt Instrument, Interest Rate, Effective Percentage	5.40%						5.40%
Convertible Subordinated Debt | Convertible Senior Notes at 4.50% February 2022
Debt Instrument [Line Items]
Debt Instrument, Repurchase Amount			$ 78,850,000
Convertible Subordinated Debt | Convertible Senior Notes at 4.50% February 2022 [Domain]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 0						$ 0			2,650,000				$ 120,000,000
Long-term debt	0						0			2,642,000
Debt Instrument, Fee Amount	0						0			(8,000)
Debt Instrument, Net Carrying Amount	$ 0						$ 0			2,642,000
Interest rate (as a percent)	4.50%						4.50%
Debt Instrument Repurchase Amount, Cash Paid	$ 2,650,000						$ 2,650,000
Debt Instrument Exchange Amount				$ 38,500,000
Debt Instrument, Increase, Accrued Interest	$ 0	$ 30,000					$ 50,000	$ 829,000
Debt Instrument, Fee Amount													$ 4,711,000
Class of Warrant or Right, Outstanding	6,918,006						6,918,006
Debt Instrument, Interest Rate on Liability Component, Effective Percentage	10.90%						10.90%
Convertible Subordinated Debt | Convertible Senior Notes at 5.00% November 2024 [Domain]
Debt Instrument [Line Items]
Long-term debt	$ 72,341,000						$ 72,341,000			72,140,000
Debt Instrument, Convertible, Threshold Trading Days							10
Convertible Subordinated Debt | Series II Convertible Senior Notes at 5.00% November 2024 [Domain]
Debt Instrument [Line Items]
Long-term debt	75,764,000						$ 75,764,000			78,251,000
Business Day Period							5 years
Convertible Subordinated Debt | Convertible Senior Notes at 4.25% March 2026 [Domain]
Debt Instrument [Line Items]
Debt Instrument, Face Amount											$ 125,000,000
Long-term debt	$ 80,898,000						$ 80,898,000			119,036,000
Interest rate (as a percent)	4.25%						4.25%
Convertible Subordinated Debt | Convertible Senior Secured Notes at 5.68% July 2026 - July 26, 2022 Issuance [Domain]
Debt Instrument [Line Items]
Long-term debt	$ 27,463,000						$ 27,463,000			0
Debt Instrument, Increase, Accrued Interest	$ 324,000
Debt Instrument, Fee Amount									$ 2,389,000
Debt Instrument, Interest Rate on Liability Component, Effective Percentage	8.70%						8.70%
Other Notes and Capital Lease Obligations
Debt Instrument [Line Items]
Long-term debt	$ 19,089,000						$ 19,089,000			36,060,000
Secured Term Loan - issuance July 26th, 2022 [Domain] | Secured Term Loans due July 2026 [Domain]
Debt Instrument [Line Items]
Long-term debt										0
Secured Debt | Secured Term Loans due July 2026 [Domain]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	66,500,000						66,500,000		$ 104,500,000
Long-term debt	59,724,000						59,724,000
Debt Instrument, Unamortized Discount	(1,907,000)						(1,907,000)
Debt Instrument, Fee Amount	(4,869,000)						$ (4,869,000)
Interest rate (as a percent)									5.68%
Debt Instrument, Increase, Accrued Interest	$ 1,217,000
Debt Instrument, Fee Amount									$ 5,107,000
Debt Instrument, Interest Rate on Liability Component, Effective Percentage	12.70%						12.70%
Senior secured revolving credit facility, due in October 2015 | Line of Credit | Revolving Credit and Security Agreement (New Credit Agreement)
Debt Instrument [Line Items]
Line of Credit Facility, Fair Value of Amount Outstanding	$ 16,900,000						$ 16,900,000			22,150,000
Line of Credit Facility, Covenant Feature, Dominion Trigger	7,500,000						7,500,000		$ 4,375,000
Line of Credit Facility, Foreign Currency Fair Value of Amount Outstanding (France)										7,366,000
Line of Credit Facility, Foreign Currency Fair Value of Amount Outstanding (UK)										5,986,000
Line Of Credit Facility Gross Borrowing Base	$ 33,133,000						$ 33,133,000
Minimum required undrawn balance (as a percent)	11.25%						11.25%
Senior secured revolving credit facility, due in October 2015 | Line of Credit | Revolving Credit and Security Agreement (New Credit Agreement) | Maximum | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Basis spread on variable rate							2.75%
Senior secured revolving credit facility, due in October 2015 | Line of Credit | Revolving Credit and Security Agreement (New Credit Agreement) | Euro Member Countries, Euro
Debt Instrument [Line Items]
Line of Credit Facility, Foreign Currency Fair Value of Amount Outstanding (France)										6,500,000
Senior secured revolving credit facility, due in October 2015 | Line of Credit | Revolving Credit and Security Agreement (New Credit Agreement) | United Kingdom, Pounds
Debt Instrument [Line Items]
Line of Credit Facility, Foreign Currency Fair Value of Amount Outstanding (UK)										$ 4,500,000
Senior secured revolving credit facility, due in October 2015 | Line of Credit | Revolving Credit and Security Agreement (North America Credit Agreement)
Debt Instrument [Line Items]
Minimum required undrawn balance (as a percent)	12.50%						12.50%
Senior secured revolving credit facility, due in October 2015 | Line of Credit | Revolving Credit and Security Agreement (Europe Credit Agreement)
Debt Instrument [Line Items]
Line of Credit Facility, Covenant Feature, Dominion Trigger	$ 3,750,000						$ 3,750,000
Minimum required undrawn balance (as a percent)	12.50%						12.50%
Remaining borrowing capacity	$ 30,000,000						$ 30,000,000
Line of Credit Facility, Covenant Feature, Prior Limit	10,000,000						10,000,000
Line of Credit Facility, Covenant Feature, Increase Limit Based on receivables	9,000,000						9,000,000
Line of Credit Facility, Covenant Feature Dominion Trigger for Five Consecutive Days	$ 3,750,000						$ 3,750,000
Senior secured revolving credit facility, due in October 2015 | Line of Credit | Revolving Credit and Security Agreement (Europe Credit Agreement) | Maximum | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Basis spread on variable rate							3.00%