Valuation and Qualifying Accounts (in thousands)

12 Months Ended

Dec. 31, 2011

Valuation and Qualifying Accounts (in thousands)

Valuation and Qualifying Accounts (in thousands)

Q.    Valuation and Qualifying Accounts (in thousands)

	Balance at Beginning of Period		Additions(a)		Other Additions(b)		Deductions Charged to Reserves			Balance at End of Period
Year ended December 31, 2011:
Accounts receivable allowances(c)	$	1,148	$	14,074	$	—	$	(13,400	)	$	1,822
Rebates, fees and returns reserves	$	10,015	$	9,864	$	—	$	(13,936	)	$	5,943
Year ended December 31, 2010:
Accounts receivable allowances(c)	$	499	$	5,113	$	—	$	(4,464	)	$	1,148
Rebates, fees and returns reserves	$	5,657	$	17,779	$	—	$	(13,421	)	$	10,015
Year ended December 31, 2009:
Accounts receivable allowances(c)	$	—	$	804	$	—	$	(305	)	$	499
Rebates, fees and returns reserves	$	—	$	4,792	$	1,119	$	(254	)	$	5,657

(a)

Additions to sales discounts, rebates, fees and returns reserves are recorded as a reduction of revenues.

(b)

Additions to rebate reserves related to deferred revenues are recorded as a reduction to deferred revenues.

(c)

We have not recorded an allowance for doubtful accounts in any of the years presented above.