Intangible Assets

6 Months Ended

Jun. 30, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible Assets

9.    Intangible Assets

Intangibles as of June 30, 2013, consist of the following:

	Gross		Accumulated Amortization			Net
	(In thousands)
Patents and technology rights	$	24,114	$	(20,221	)	$	3,893
Customer relationships	8,000		(6,884		)	1,116
Total intangibles	$	32,114	$	(27,105	)	$	5,009

Intangibles as of December 31, 2012, consist of the following:

	Gross		Accumulated Amortization			Net
	(In thousands)
Patents and technology rights	$	22,169	$	(19,636	)	$	2,533
Customer relationships	8,000		(5,767		)	2,233
Total intangibles	$	30,169	$	(25,403	)	$	4,766

Amortization of identifiable intangible assets for the three and six months ended June 30, 2013, was $0.9 million and $1.7 million, respectively. Amortization of identifiable intangible assets for the three and six months ended June 30, 2012, was $0.8 million and $2.0 million, respectively. Based on the amortizing assets recognized in our balance sheet at June 30, 2013, amortization for each of the next five years is estimated as follows:

	Amortization
	(In thousands)
2013 remaining	$	1,967
2014	1,230
2015	938
2016	466
2017	178
Thereafter	230
Total amortization	$	5,009