Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Lease Payments Required under Non-Cancelable Operating Leases

The following is a schedule of future minimum lease payments required under non-cancelable operating leases with initial terms in excess of one year, in effect at December 31, 2017:

Years ending December 31,	Amount
2018	$	6,563
2019	4,925
2020	3,123
2021	1,251
2022	1,213
Thereafter	3,564
Total future minimum lease payments	$	20,639