Intangible Assets Other Than Goodwill

12 Months Ended

Dec. 31, 2012

Intangible Assets Other Than Goodwill

Note 7—Intangible Assets Other Than Goodwill

 Intangible assets other than goodwill consist primarily of licenses, product lines, customer relationships and trademarks. Amortized intangible assets are included in intangibles in the accompanying balance sheets. Trademarks are disclosed separately in the accompanying balance sheets.  Debt offering costs from the issuance of the Company’s convertible senior notes are included in other long term assets in the accompanying balance sheets.  Intangible assets and debt issuance costs are as follows (in thousands, except for weighted useful lives):

			December 31, 2011							December 31, 2012
	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	$	(72,797	)	$	18,691	$	91,488	$	(77,844	)	$	13,644
Product lines		3.65		19,500		(18,787	)		713		66,594		(19,561	)		47,033
Customer relationships		5.28		7,096		(4,800	)		2,296		9,347		(5,903	)		3,444
Trade names											3,000		(250	)		2,750
Non-compete/ Employment contracts		3.84		3,133		(3,080	)		53		3,333		(3,150	)		183
Total amortized intangible assets				121,217		(99,464	)		21,753		173,762		(106,708	)		67,054
Deferred Costs:
Debt issuance costs		5.00		3,678		(1,592	)		2,086		4,224		(2,609	)		1,615
Unamortized Intangible Assets:
Trademarks				2,308		―			2,308		2,308		―			2,308
			$	127,203	$	(101,056	)	$	26,147	$	180,294	$	(109,317	)	$	70,977

 For the years ended December 31, 2010, 2011, and 2012, the Company’s aggregate amortization expense related to intangible assets and deferred costs was $10.2 million, $9.3 million and $8.3 million, respectively. The Company currently estimates continuing future amortization expense to be approximately (in thousands):

2013	$	9,382
2014		6,298
2015		5,278
2016		5,429
2017		5,392
Thereafter		36,890
	$	68,669