RESTRUCTURING AND FACILITIES CONSOLIDATION INITIATIVES (Tables)

3 Months Ended

Mar. 31, 2020

Restructuring and Related Activities [Abstract]

Summary of restructuring accrual activity

The components of Restructuring and related expense for the three months ended March 31, 2020 and 2019 were as follows (in thousands):

	Three months ended
	March 31, 2020		March 31, 2019
Severance and related costs	$	1,771	$	4,919
Variable and other facilities-related costs	234		13
Accelerated amortization of lease assets due to cease-use	70		—
	$	2,075	$	4,932

A summary of the 2019 Restructuring Initiative accrual activity for severance and related costs for the three months ended March 31, 2020 is as follows (in thousands):

	Balance at January 1, 2020		Initiatives charged to expense		Reclassify accelerated amortization to operating lease liabilities			Cash payments			Balance at March 31, 2020
Severance	$	2,110	$	655	$	—		$	(1,253	)	$	1,512
Facilities	991		304		(70		)	(272		)	953
	$	3,101	$	959	$	(70	)	$	(1,525	)	$	2,465

A summary of the GENBAND Merger Restructuring Initiative accrual activity for the three months ended March 31, 2020 is as follows (in thousands):

	Balance at January 1, 2020		Cash payments			Balance at March 31, 2020
Severance	$	409	$	(351	)	$	58