Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Schedule of Rent Expense

Rent expense under all operating leases was as follows (in thousands):

	Year Ended December 31,
	2018		2017		2016
Rent expense	$	5,199	$	6,095	$	6,561

Schedule of Future Minimum Rental Payments for Operating Leases

As of December 31, 2018, future minimum lease payments under non-cancellable leases, net of sublease income, were as follows (in thousands):

2019	$	5,366
2020	5,279
2021	4,147
2022	2,729
2023	1,698
Thereafter	2,647
	$	21,866