Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Future Minimum Lease Payments Under Noncancelable Operating Leases

As of December 31, 2017, future minimum lease payments under operating leases having initial or remaining noncancelable lease terms in excess of one year are as follows:

2018	$	7,964
2019	9,115
2020	9,186
2021	8,299
2022	7,279
Thereafter	26,044
Total	$	67,887