Commitments and Contingencies

12 Months Ended

Dec. 31, 2017

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

15. Commitments and Contingencies

(a) Commitments

The contractual obligations of the Company, including purchase commitments under non-cancelable arrangements as of December 31, 2017, are summarized below. The Company does not participate in, or secure financing for, any unconsolidated limited purpose entities.

	Payments due by period
	Total		2018		2019		2020
Contractual Obligations
Capital commitments		7,224		4,862		2,362		—
Total	$	7,224	$	4,862	$	2,362	$	—

(b) Significant legal proceedings

Other than as disclosed in Note 14, there is no other significant legal proceeding as of December 31, 2017.