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. No triggering events have transpired since December 31, 2012. Goodwill allocated to the Company’s operating segments for the nine months ended September 30, 2013 and for the year ended December 31, 2012 are as follows:

(In thousands)	Patient Care			Products & Services		Total
Balance at December 31, 2012	$	538,492		$	136,282	$	674,774
Additions due to acquisitions	3,562			—		3,562
Adjustments	(121		)	—		(121		)
Balance at September 30, 2013	$	541,933		$	136,282	$	678,215

	Patient Care		Products & Services		Total
Balance at December 31, 2011	$	474,166	$	135,318	$	609,484
Additions due to acquisitions	63,849		964		64,813
Contingent considerations (1)	477		—		477
Balance at December 31, 2012	$	538,492	$	136,282	$	674,774

(1) Contingent considerations relates to acquisitions completed prior to the adoption of ASC 805.

The balances related to intangible assets as of September 30, 2013 and December 31, 2012 are as follows:

	September 30, 2013							December 31, 2012
(In thousands)	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Customer Lists	$	46,072	$	(10,628	)	$	35,444	$	48,044	$	(7,846	)	$	40,198
Trade Name	9,932		(197		)	9,735		9,070		—			9,070
Patents and Other Intangibles	28,241		(14,782		)	13,459		27,810		(12,797		)	15,013
	$	84,245	$	(25,607	)	$	58,638	$	84,924	$	(20,643	)	$	64,281

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 year. Patents are amortized using the straight-line method over 5 years. Total intangible amortization expenses were $5.0 million and $3.8 million for the nine months ended September 30, 2013 and September 30, 2012, respectively. The weighted average life of the additions to customer lists, patents and other intangibles is 7.7 years.