NOTE C — GOODWILL AND OTHER INTANGIBLE ASSETS

The Company completes its annual goodwill and indefinite lived intangible impairment analysis in the fourth quarter of each year. The Company has the option to first assess qualitative factors to determine whether it is more likely than not that the fair value of a reporting unit is less than its carrying amount as a basis for determining whether it is necessary to perform the two-step quantitative goodwill impairment test. If the Company determines that a two-step goodwill impairment test is necessary or more efficient than a qualitative approach, it will measure the fair value of the Company’s reporting units using a combination of income, market and cost approaches. There were no impairment indicators since our last annual impairment test on October 1, 2013.

Goodwill allocated to the Company’s operating segments for the three months ended March 31, 2014 and for the year ended 2013 are as follows:

(In thousands)	Patient Care		Products & Services		Total
Balance at December 31, 2013	$	545,265	$	136,282	$	681,547
Additions due to acquisitions	17,130		3,778		20,908
Adjustments	—		—		—
Balance at March 31, 2014	$	562,395	$	140,060	$	702,455

	Patient Care			Products & Services		Total
Balance at December 31, 2012	$	538,492		$	136,282	$	674,774
Additions due to acquisitions	7,317			—		7,317
Adjustments	(544		)	—		(544		)
Balance at December 31, 2013	$	545,265		$	136,282	$	681,547

The balances related to intangible assets as of March 31, 2014 and December 31, 2013 are as follows:

	March 31, 2014							December 31, 2013
(In thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Customer Lists	$	50,263	$	(12,715	)	$	37,548	$	46,932	$	(11,627	)	$	35,305
Trade Name	11,825		(380		)	11,445		10,023		(264		)	9,759
Patents and Other Intangibles	28,546		(16,172		)	12,374		28,441		(15,484		)	12,957
	$	90,634	$	(29,267	)	$	61,367	$	85,396	$	(27,375	)	$	58,021

Customer lists are amortized over their estimated period of benefit, generally 10 to 14 years. The majority of value associated to trade names is identified as an indefinite lived intangible asset, which is assessed for impairment on an annual basis as discussed in Note B. Trade names not identified as an indefinite lived intangible asset are amortized over their estimated period of benefit of approximately 1 to 3 years. Patents are amortized using the straight-line method over 5 years. Total intangible amortization expenses were $1.8 million and $1.7 million for the three months ended March 31, 2014 and March 31, 2013, respectively. The weighted average life of the additions to customer lists, patents and other intangibles is 6 years.