Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2020

Accounting Policies [Abstract]

Schedule of allowance for credit loss

The following table reconciles the opening balance of the allowance for doubtful accounts to the closing balance for expected credit losses:

Allowance for Doubtful Accounts	(amounts in thousands)
Balance at January 1, 2020	$	2,406
Bad Debt Expense	539
Write-Offs, net of Recoveries	(349)
Balance at March 31, 2020	2,596
Bad Debt Expense	898
Write-Offs, net of Recoveries	(532)
Balance at June 30, 2020	2,962
Bad Debt Expense	946
Write-Offs, net of Recoveries	(800)
Balance at September 30, 2020	3,108
Bad Debt Expense	652
Write-Offs, net of Recoveries	(344)
Balance at December 31, 2020	$	3,416

Schedule of restructuring costs

Reconciliations of the employee termination costs and lease-related exit costs beginning and ending liability balance is presented below:

	Year Ended December 31,
	2020				2019				2018
	(amounts in thousands)
	Employee Termination Costs		Lease-Related Exit Costs		Employee Termination Costs		Lease-Related Exit Costs		Employee Termination Costs		Lease-Related Exit Costs
Balance at beginning of period	$	386	$	1,223	$	556	$	127	$	87	$	441
Charged to restructuring costs(a)	2,525		2,190		1,870		1,311		1,600		184
Payments	(2,412)		(726)		(2,040)		(215)		(1,131)		(235)
Balance at end of period	$	499	$	2,687	$	386	$	1,223	$	556	$	390

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(a) Aside from what is presented in the table above, restructuring costs in the consolidated statements of operations for the years ended December 31, 2020, 2019, and 2018 include: (i) $1.1 million, $0.2 million, and $0.4 million, respectively, of ongoing lease costs related to the Company's strategic reduction in its real estate footprint which are included as operating lease liabilities - current and non-current in our consolidated balance sheets, and (ii) $0.5 million of other costs for the year ended December 31, 2018. Other costs were immaterial for the years ended December 31, 2020 and 2019. In addition, the year ended December 31, 2020 includes $0.2 million of legal entity reorganization costs.