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Debt Obligations (Details) - USD ($) $ in Thousands | Mar. 31, 2020 | Dec. 31, 2019
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Debt Obligations |  |
Total principal amount | $ 334,292 | $ 226,483
Less-unamortized debt issuance costs | (329) | (348)
Total long-term portion of debt | 333,963 | 226,135
Less-current portion | 850 | 20,817
Total long-term portion of debt, net | 333,113 | 205,318
Revolving credit facility |  |
Debt Obligations |  |
Total principal amount | 150,000 | 28,000
Term loan |  |
Debt Obligations |  |
Total principal amount | 140,625 | 150,000
Notes to former owners |  |
Debt Obligations |  |
Outstanding balance | $ 43,667 | $ 48,483

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- Definition Amount of unamortized debt discount (premium) and debt issuance costs. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399 + Details
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