DEBT OBLIGATIONS - Rolling Maturities of Long-Term Debt (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
2021 (current)	$ 7,866
2022	39,302
2023	355,668
2024	96,533
Total debt obligations	499,369	$ 495,479
Line of Credit \| Syndicate of Lenders \| Term Loan
Debt Instrument [Line Items]
2021 (current)	7,866
2022	24,302
2023	355,668
2024	0
Total debt obligations	387,836
Line of Credit \| Syndicate of Lenders \| Revolving Credit Facility
Debt Instrument [Line Items]
2021 (current)	0
2022	15,000
2023	0
2024	0
Total debt obligations	15,000
Line of Credit \| Goldman Sachs Specialty Lending Group \| Term Loan
Debt Instrument [Line Items]
2021 (current)	0
2022	0
2023	0
2024	96,533
Total debt obligations	$ 96,533

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 210
-Section S99
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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-Paragraph 3
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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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