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DEBT - Summary of debt and interest payment obligations (Detail) $ in Thousands	Dec. 31, 2018 USD ($)
Debt payment obligations
Debt payment obligations, 2019 (remainder)	$ 12,500
Debt payment obligations, 2020	31,250
Debt payment obligations, 2021	43,750
Debt payment obligations, 2022	50,000
Debt payment obligations, 2023	337,500
Debt payment obligations, thereafter	0
Debt payment obligations, total	475,000
Interest and other payments on debt payment obligations (1)
Interest and other payments on debt payment obligations, 2019 (remainder)	10,639
Interest and other payments on debt payment obligations, 2020	20,666
Interest and other payments on debt payment obligations, 2021	19,054
Interest and other payments on debt payment obligations, 2022	16,991
Interest and other payments on debt payment obligations, 2023	8,422
Interest and other payments on debt payment obligations, thereafter	0
Interest and other payments on debt payment obligations, total	75,772
Total
Debt and interest payment obligations, 2018 (remainder)	23,139
Debt and interest payment obligations, 2019	51,916
Debt and interest payment obligations, 2020	62,804
Debt and interest payment obligations, 2021	66,991
Debt and interest payment obligations, 2022	345,922
Debt and interest payment obligations, thereafter	0
Debt and interest payment obligations, total	$ 550,772

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- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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