Accounts Receivable (Tables)

3 Months Ended

Mar. 31, 2018

Receivables [Abstract]

Schedule of accounts receivable

Accounts receivable consist of the following at March 31, 2018 and December 31, 2017:

(in thousands)	March 31,   2018			December 31,   2017
Trade receivables	$	361,722		$	333,954
Allowance for doubtful accounts	(5,333		)	(4,771		)
Sales returns allowance (a)	—			(4,127		)
Other allowances	(2,640		)	(2,164		)
	$	353,749		$	322,892

(a) Effective January 1, 2018, as part of the Company’s adoption of Topic 606, the Company has recorded a liability for estimated returns of inventory as a refund liability within accrued expenses and other liabilities. These balances were previously presented as an allowance within accounts receivable. See Note 6 for further details.