Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Commitments for Minimum Rentals under Non-cancelable Leases

The Company leases its facilities and certain equipment. Commitments for minimum rentals under non-cancelable leases at the end of 2017 are as follows (in thousands):

Years ending December 31,	Operating Leases		Lease obligation
2018	$	8,638	$	946
2019	9,072		956
2020	9,212		967
2021	9,050		—
2022	7,412		—
Thereafter	80,559		—
Total minimum lease payments	$	123,943	$	2,869