Debt Obligations (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Long-Term Debt Obligations
Total debt	$ 96,951	$ 60,539
Less - current portion	(3,279)	(613)
Total long-term portion of debt	93,672	59,926
Revolving credit facility
Long-Term Debt Obligations
Total debt	70,000	45,000
Notes to former owners
Long-Term Debt Obligations
Total debt	26,813	15,325
Other debt
Long-Term Debt Obligations
Total debt	$ 138	$ 214

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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

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