Acquired Intangible Assets

3 Months Ended

Mar. 31, 2013

Acquired Intangible Assets [Abstract]

Acquired Intangible Assets

Note 7.       Acquired Intangible Assets

Acquired identifiable intangible assets consist of the following:

	March 31, 2013			December 31, 2012
	(In thousands)
Customer relationships	$	43,863		$	40,100
Trademarks and trade names		6,800			6,800
Non-compete agreements		910			910
Patents and supply contracts		723			723
Leaseholds		160			160
Total acquired intangible assets		52,456			48,693
Less accumulated amortization (1)		(15,547	)		(14,210	)
Net acquired intangible assets	$	36,909		$	34,483

(1)   Applies to all intangible assets, except for trademarks and trade names totaling $5.2 million, which have indefinite useful lives and, as such, are not being amortized.

In February 2013, we acquired the original equipment business of SMP Europe.  Intangible assets acquired consist of $3.8 million of customer relationships that will be amortized on a straight-line basis over the estimated useful life of 10 years.

Total amortization expense for acquired intangible assets was $1.3 million and $0.9 million for the three months ended March 31, 2013 and 2012, respectively.  Based on the current estimated useful lives assigned to our intangible assets, amortization expense is estimated to be $3.6 million for the remainder of 2013, $4.5 million in 2014, $4.3 million in 2015 and $19.3 million in the aggregate for the years 2016 through 2028.