Leases (Tables)

12 Months Ended

Dec. 31, 2018

Leases

Schedule of components of lease expense

The components of lease expense were as follows (in thousands):

	Year Ended December 31,
	2018		2017		2016
Lease expense:
Operating lease expense	$	22,927	$	20,345	$	19,499
Variable lease expense		4,769		3,780		3,132
Rent expense	$	27,696	$	24,125	$	22,631

Schedule of future minimum lease payments to be paid under noncancelable leases

The future minimum lease payments to be paid under noncancelable operating leases in effect at December 31, 2018, are as follows (in thousands):

	Operating
Year Ending December 31,	Leases
2019	$	25,712
2020		26,661
2021		26,392
2022		25,995
2023		24,142
Thereafter		129,606
Total lease payments	$	258,508
Less imputed interest		(55,809)
Total	$	202,699