Convertible Notes, Other Debts and Capital Leases - Debt Maturities (Details) $ in Thousands	Dec. 31, 2018 USD ($)
Debt Disclosure [Abstract]
Capital Lease Obligations 2019	$ 91
Capital lease obligation 2020	49
Capital Lease Obligations 2021	22
Capital Lease Obligations 2022	0
Capital lease obligation 2023	0
Capital Lease Obligations Thereafter	0
Capital Lease Obligations Total	162
Other debt obligations 2019	7,084
Other Debt Obligations 2020	6,607
Other Debt Obligations 2021	5,333
Other Debt Obligations 2022	452
Other Debt Obligations 2023	155
Other Debt Obligations Thereafter	66
Other Debt Obligations Total	$ 19,697

Amount of minimum lease payments for capital leases.

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Amount of minimum lease payments for capital leases due in the next 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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Amount of minimum lease payments for capital leases due in 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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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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