Other Intangibles

9 Months Ended

Sep. 30, 2013

Other Intangibles

Other Intangibles

(7) Other Intangibles

Acquired other intangible assets consisted of the following at September 30, 2013 and December 31, 2012 (dollars in thousands):

	September 30, 2013				December 31, 2012
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization		Useful Lives (Years)
Trade names	$	8,400	$	—	$	10,400	$	2,000	—
Customer-related intangibles	27,851		8,369		27,851		6,712		13.1
Proprietary software	21,501		17,517		21,501		16,106		6.4
Trading rights	243		—		243		—		—
Other	50		—		50		—		—
Total	$	58,045	$	25,886	$	60,045	$	24,818

At September 30, 2013, indefinite-lived intangibles not subject to amortization amounted to $8.7 million, of which $8.4 million related to the POSIT trade name.

Amortization expense of other intangibles was $1.0 million and $3.1 million for the three months and nine months ended September 30, 2013, respectively, compared with $1.3 million and $3.7 million in the respective prior-year periods. These amounts are included in other general and administrative expense in the Condensed Consolidated Statements of Operations.

During the nine months ended September 30, 2013, no other intangibles were deemed impaired, and accordingly, no adjustment was required.