Accrued Expenses and Other Current Liabilities (Tables)

6 Months Ended

Jun. 30, 2019

Payables and Accruals [Abstract]

Components of accrued expenses and other current liabilities

The components of accrued expenses and other current liabilities were as follows:

	As of
(in thousands)	June 30, 2019		December 31, 2018
Employee compensation and related costs	$	34,348	$	37,822
Professional and consulting services	12,856		14,925
Supplier purchases	3,089		7,742
Value added taxes payable	3,527		8,463
Other	27,201		21,205
Accrued expenses and other current liabilities	$	81,021	$	90,157

Reconciliation of Changes in Product Warranty Liability

A reconciliation of the changes in the Company’s product warranty liability is as follows: 

	Three Months Ended June 30,						Six Months Ended June 30,
(in thousands)	2019			2018			2019			2018
Product warranty liability at beginning of period	$	6,283		$	5,386		$	6,379		$	5,337
Warranty expense	3,147			1,529			5,366			3,501
Warranty claims settled	(2,791		)	(1,412		)	(5,106		)	(3,335		)
Product warranty liability at end of period	$	6,639		$	5,503		$	6,639		$	5,503

Product warranty liability was included in the following consolidated balance sheet accounts in the amounts shown:

	As of
(in thousands)	June 30, 2019		December 31, 2018
Accrued expenses and other current liabilities	$	2,906	$	2,701
Other liabilities	3,733		3,678
Total	$	6,639	$	6,379