SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Jan. 01, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total shareholders' equity	$ 206,497	$ 350,486	$ 340,848		$ 447,992	$ 431,082	$ 420,368	$ 395,443	$ 364,761
Assets:
Deferred income tax assets	0			$ 111,560	87,581
Liabilities:
Current portion of long-term debt	2,484			169,221	166,008
Long-term debt	813,395			564,220	478,151
Shareholders' equity:
Additional paid-in capital	1,177,409			1,133,044	1,242,794
Accumulated deficit	(704,895)			(527,347)	(571,794)
Accumulated Deficit
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total shareholders' equity	$ (704,895)	$ (546,211)	$ (538,173)	44,400	(571,794)	$ (619,719)	$ (615,259)	$ (621,860)	$ (640,909)
Interest adjustment due to ASU 2020-06 adoption				60,800
Tax impacts due to ASU 2020-06 adoption				16,400
Cumulative Effect, Period of Adoption, Adjustment
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total shareholders' equity					(65,303)
Assets:
Deferred income tax assets				23,979
Liabilities:
Current portion of long-term debt				3,213
Long-term debt				86,069
Shareholders' equity:
Additional paid-in capital				(109,750)
Accumulated deficit				$ 44,447
Cumulative Effect, Period of Adoption, Adjustment | Accumulated Deficit
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Total shareholders' equity					$ 44,447