Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2018

Commitments and Contingencies Disclosure [Abstract]

Future Purchase Commitments

Future minimum commitments as of June 30, 2018, are as follows (in thousands):

Remainder of 2018	$	44,316
2019	16,806
2020	7,043
2021	3,532
2022	1,138
	$	72,835