Valuation and Qualifying Accounts (Tables)

12 Months Ended

Dec. 31, 2014

Valuation and Qualifying Accounts [Abstract]

Valuation and qualifying accounts

Valuation and Qualifying Accounts:

			Additions Charged to
Description	Balance at Beginning of Period		Cost and Expenses		Other Accounts		Deductions (1)			Balance at End of Period
For The Year Ended December 31, 2014:
Allowance for Doubtful Accounts	$	10,734	$	7,661	$	-	$	(4,836	)	$	13,559
Allowance for Sales Returns	$	16,046	$	35,771	$	-	$	(44,166	)	$	7,651
For The Year Ended December 31, 2013:
Allowance for Doubtful Accounts	$	6,917	$	5,958	$	-	$	(2,141	)	$	10,734
Allowance for Sales Returns	$	11,901	$	47,916	$	-	$	(43,771	)	$	16,046
For The Year Ended December 31, 2012:
Allowance for Doubtful Accounts	$	3,196	$	4,629	$	-	$	(908	)	$	6,917
Allowance for Sales Returns	$	6,143	$	43,284	$	-	$	(37,526	)	$	11,901

(1) Represents write-offs of specific accounts receivable or actual returns, as applicable.