Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2018

Commitments And Contingencies Disclosure [Abstract]

Summary of Principal Contractual Obligations Excluding the Financial Liabilities and Long-Term Payment Obligation

The following table summarizes the Company’s principal contractual commitments, excluding the financial liabilities and long-term payment obligation, as of December 31, 2018 (in thousands):

	Operating Leases (a)		Purchase Commitments		Other Contractual Commitments		Total
2019	$	2,210	$	10,893	$	153	$	13,256
2020		2,050		450		—		2,500
2021		1,706		450		—		2,156
2022		834		450		—		1,284
2023		533		450		—		983
Thereafter		—		—		—		—
Total	$	7,333	$	12,693	$	153	$	20,179

(a) Operating lease payments have not been reduced by sublease rentals of $2.6 million due in the future under noncancelable subleases.