Accounts Receivable (Narrative) (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Accounts Receivable [Line Items]
Cash discount to customers, percentage of sales price			2.00%
Wholesale Distribution Channel [Member]
Accounts Receivable [Line Items]
Concentration of Product Sales, Percentage	59.00%	62.00%	60.00%	61.00%
Maximum [Member]
Accounts Receivable [Line Items]
Process period for accounts receivable reserves and allowances, except for product returns allowance, in months			4
Shelf-lives of products sold, in months			48
Invoice period for customers to avail cash discount, days			90
Minimum [Member]
Accounts Receivable [Line Items]
Process period for accounts receivable reserves and allowances, except for product returns allowance, in months			2
Shelf-lives of products sold, in months			12
Invoice period for customers to avail cash discount, days			30