LEASES (Tables)

3 Months Ended

Mar. 31, 2019

LEASES

Components of lease costs

	Three Months Ended
	March 31,
(in thousands)	2019
Financing lease costs:
Amortization of ROU asset	$	24
Interest on lease liabilities		20
Operating lease costs		3,464
Variable lease cost		467
Short-term lease cost		713
Sublease income		(1,461)
Total lease costs	$	3,227

Aggregate future lease payments for operating leases

The aggregate future lease payments for operating leases are as follows:

	Operating
(in thousands)	Leases
2019 (remainder)	$	10,280
2020		12,061
2021		9,898
2022		10,335
2023		10,138
2024		8,915
Thereafter		21,858
Total undiscounted cash flows		83,485
Less imputed interest		(24,328)
Total lease liability	$	59,157

Our future minimum lease commitments, net of sub-lease rental income, as of December 30, 2018, under ASC 840, the predecessor to Topic 842, was as follows:

	Operating		Sublease		Net Lease
(in thousands)	Leases		Income		Obligation
2019	$	16,408	$	(4,044)	$	12,364
2020		11,921		(1,306)		10,615
2021		9,797		(379)		9,418
2022		10,178		(334)		9,844
2023		10,160		(232)		9,928
Thereafter		31,139		—		31,139
Total	$	89,603	$	(6,295)	$	83,308

Summary of minimum lease commitments, net of sub-lease rental income

	Operating		Sublease		Net Lease
(in thousands)	Leases		Income		Obligation
2019	$	16,408	$	(4,044)	$	12,364
2020		11,921		(1,306)		10,615
2021		9,797		(379)		9,418
2022		10,178		(334)		9,844
2023		10,160		(232)		9,928
Thereafter		31,139		—		31,139
Total	$	89,603	$	(6,295)	$	83,308

Summary of weighted average remaining lease terms and discount rates

	March 31, 2019
	Operating		Financing
	Leases		Lease
Weighted average remaining lease term (years)	7.44		6.58
Weighted average discount rate	9.12	%	10.50	%

Schedule of supplemental cash flow information related to operating leases

	Three Months Ended
	March 31,
(in thousands)	2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash outflow from operating leases	$	3,504
Operating cash outflow from financing lease		20
Financing cash outflow from financing lease		17
ROU assets obtained in exchange for new operating lease liabilities		263