Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of future minimum lease payments under operating and capital lease obligations

Future minimum lease payments under operating and capital lease obligations are as follows (in thousands):

	Capital Leases			Operating Leases		Purchase Commitments
2018	$	1,150		$	3,103.00	$	3,238
2019	619			3,260.00		—
2020	75			1,969.00		—
2021	—			765.00		—
2022	—			8.00		—
Thereafter	—			—		—
Total minimum lease payments	1,844			$	9,105	$	3,238
Less amount representing interest	(228		)
Present value of capital lease obligations	1,616
Less current portion of capital lease obligations	(1,092		)
Long-term capital lease obligations	$	524