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DEBT - Paycheck Protection Program Loan (Details) - USD ($) $ in Thousands		1 Months Ended	6 Months Ended
	Apr. 16, 2020	Apr. 16, 2020	Jun. 30, 2020	Jun. 30, 2019	Oct. 01, 2019	Aug. 02, 2019
Current and long-term debt
Proceeds from issuance of debt			$ 81,209	$ 244,000
6.75% senior notes due 2025
Current and long-term debt
Interest rate (as a percent)					6.75%	6.75%
Paycheck Protection Program Loan
Current and long-term debt
Proceeds from issuance of debt		$ 2,200
Interest rate (as a percent)	1.00%	1.00%
Monthly principal and interest installments	$ 100
Maturity date			Apr. 16, 2022
Maximum percentage allowed to be prepaid without written advance notice			20.00%

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

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Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

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