Notes Payable and Other Noncurrent Liabilities - Payments Due Under Notes Payable Obligations (Details) - Amended and restated credit agreement $ in Thousands	Sep. 30, 2019 USD ($)
Payments due under notes payable obligations:
2019	$ 20,474
2020	33,144
2021	33,144
2022	33,144
2023	33,144
Thereafter	103,342
Total	$ 256,392

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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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