Accounts Receivable, net (Tables)

12 Months Ended

Dec. 31, 2012

Receivables [Abstract]

Accounts receivable, net

Accounts receivable, net, consists of the following:

	December 31, 2012			December 31, 2011
Gross accounts receivable	$	117,853		$	111,637
Allowance for doubtful accounts	(11,711		)	(9,932		)
Total accounts receivable, net	$	106,142		$	101,705

Receivables from distributors

Receivables from distributors consist of the following:

	December 31, 2012		December 31, 2011
Billed	$	53,057	$	44,618
Unbilled	51,368		40,199
Total	$	104,425	$	84,817