LEASES (Tables)

3 Months Ended

Mar. 31, 2019

Leases [Abstract]

Summary of operating lease cost and other operating lease information

Total operating lease costs are as follows (in thousands):

	Three Months Ended
	March 31,
	2019		2018
Operating lease costs:
Fixed lease costs	$	1,443	$	1,490
Variable lease costs	381		402
Total	$	1,824	$	1,892

Supplemental cash flow information related to operating leases is as follows (in thousands):

	Three Months Ended
	March 31, 2019
Cash paid for amounts included in the measurement of operating lease liabilities	$	2,050
Right-of-use assets recorded in exchange for lease obligations	$	34,780

The weighted average remaining lease term and the weighted average discount rate are summarized as follows:

	March 31, 2019
Weighted average remaining lease term	6.59 years
Weighted average discount rate	8.10%

Schedule of maturities of operating lease liabilities

Maturities of the Company’s operating lease liabilities are as follows, and include a renewal option to extend the lease on one facility (in thousands):

Year	Aggregate Minimum Payments Due
2019 (remaining nine months)	$	6,090
2020	7,700
2021	5,539
2022	5,671
2023	5,806
2024 through 2028	14,788
Total lease payments	45,594
Less: imputed interest	(10,714		)
Total operating lease liabilities	$	34,880

Schedule of maturities of operating lease liabilities

As of December 31, 2018, aggregate annual minimum payments due under the Company’s lease obligations were as follows (in thousands):

Year	Aggregate Minimum Payments Due
2019	$	8,140
2020	7,621
2021	5,295
2022	5,417
2023	5,543
2024 through 2028	14,329
Total	$	46,345