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.

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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 after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Debt Obligations - Schedule of Principal Outstanding (Details) - USD ($) $ in Thousands	Mar. 31, 2019	Feb. 28, 2019	Dec. 31, 2018
Long Term Debt
2019	$ 42,333
2020	56,128
2021 (includes $392.0 million outstanding on revolving credit facility)	448,418
2022 (includes $163.1 million outstanding on WEST II Series A 2012 term notes)	212,671
2023	34,008
Thereafter	524,112
Total	1,317,670		$ 1,358,430
Revolving Credit Facility
Long Term Debt
2021 (includes $392.0 million outstanding on revolving credit facility)	392,000
WEST II Series A 2012 term note
Long Term Debt
2022 (includes $163.1 million outstanding on WEST II Series A 2012 term notes)	163,100
Total	232,409		237,847
Note payable
Long Term Debt
Total	$ 8,120	$ 8,100	$ 0