Concentration Of Risk, Segment, And Geographic Information (Summary Of Significant Accounts Receivable) (Details)	6 Months Ended	12 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended	6 Months Ended
	Dec. 31, 2012 Customer E [Member] Accounts Receivable [Member]	Jun. 30, 2012 Customer E [Member] Accounts Receivable [Member]	Dec. 31, 2012 Customer A [Member]	Dec. 31, 2011 Customer A [Member]	Dec. 31, 2012 Customer A [Member]	Dec. 31, 2012 Customer A [Member] Accounts Receivable [Member]	Jun. 30, 2012 Customer A [Member] Accounts Receivable [Member]	Dec. 31, 2011 Maximum [Member] Customer A [Member]
Concentration Risk [Line Items]
Concentration Risk, Percentage	12.00%	19.00%	16.00%	12.00%	13.00%	12.00%	12.00%	10.00%