Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Lease Payments by Year under Noncancelable Operating Leases

As of December 31, 2017, the future minimum lease payments by year under noncancelable operating leases are as follows for the years ending December 31 (in thousands):

2018	$	14,934
2019	18,938
2020	16,675
2021	14,927
2022	13,005
Thereafter	40,055
Total minimum lease payments	$	118,534

Summary of Future Payments Under Noncancelable Purchase Obligations

As of December 31, 2017, our contractual purchase obligations, primarily related to hosting infrastructure providers, are as follows for the years ending December 31 (in thousands):

2018	38,559
2019	28,530
2020	29,270
Total purchase obligations	$	96,359