Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of intangible assets

The following table summarizes intangible assets related to acquisitions:

		March 31, 2014				December 31, 2013
	Amortization	Gross				Gross
Intangible Assets	Period	Carrying		Accumulated		Carrying		Accumulated
(Amounts in thousands)	In Years	Amount		Amortization		Amount		Amortization
Goodwill	Indefinite	$	143,170	$	—	$	142,682	$	—
Trademarks and trade names	Indefinite	58,809		—		58,814		—
Total with indefinite lives		201,979		—		201,496		—
Distribution and non-compete agreements	2 - 7	6,092		1,225		1,112		1,064
Patents	11 - 13	5,320		2,096		5,320		1,988
Manufacturing technology	n/a	2,637		2,637		2,639		2,639
Trademarks and trade names	5	549		45		549		18
Customer relationships	10 - 19	107,625		46,099		107,633		43,217
Total with finite lives		122,223		52,102		117,253		48,926
Total intangible assets		$	324,202	$	52,102	$	318,749	$	48,926

Schedule of amortization expense for intangible assets

Amortization expense for these intangible assets, included in cost of goods sold in the Consolidated Statements of Income, was as follows:

Amortization Expense for Intangible Assets	Three Months Ended March 31,
(Amounts in thousands)	2014		2013
Amortization expense for acquired intangible assets	$	3,182	$	3,557