Intangible assets and debt issuance costs are as follows (in thousands, except for weighted useful lives):

		December 31, 2012						March 31, 2013
	Weighted Useful Lives	Gross Carrying Amount		Accumulated Amortization		Net Amount		Gross Carrying Amount		Accumulated Amortization			Net Amount
	(Years)

Amortized Intangible Assets:
Licenses	4.96	$	91,488	$	(77,844)	$	13,644	$	91,488	$	(78,164)	$	13,324
Product lines	5.84		66,594		(19,561)		47,033		66,594		(19,923)		46,671
Customer relationships	5.21		9,347		(5,903)		3,444		9,347		(6,084)		3,263
Trade names	5.00		3,000		(250)		2,750		3,000		(400)		2,600
Non-compete/Employment contracts	3.90		3,333		(3,150)		183		3,333		(3,160)		173
Total amortized intangible assets			173,762		(106,708)		67,054		173,762		(107,731)		66,031
Deferred Costs:
Debt issuance costs	2.79		4,224		(2,609)		1,615		4,224		(3,059)		1,165
Unamortized Intangible Assets:
Trademarks			2,308		―		2,308		2,308		―		2,308
Total Intangible Assets:		$	180,294	$	(109,317)	$	70,977	$	180,294	$	(110,790)	$	69,504