Trade Accounts Receivable, Net (Tables)

6 Months Ended

Jun. 30, 2012

Trade Accounts Receivable, Net

Schedule of trade accounts receivable, net

	At June 30,						At December 31,
(in thousands)	2012			2011			2011
Trade accounts receivable	$	123,531		$	121,414		$	78,642
Allowance for doubtful accounts	(1,343		)	(1,500		)	(991		)
Allowance for sales discounts and returns	(2,069		)	(1,939		)	(1,231		)
	$	120,119		$	117,975		$	76,420