Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2013

Summary of Activity Related to Goodwill

The following table summarizes the activity related to ICG’s goodwill (in thousands):

	Gross Carrying Amount		Accumulated Impairment Losses			Net Carrying Amount
Goodwill as of December 31, 2012	$	88,116		(304	)	$	87,812
Increase in goodwill due to Bolt’s acquisition of Superior Access		2,540		—			2,540
Goodwill as of December 31, 2013	$	90,656		(304	)	$	90,352

Summary of Intangible Assets from Continuing Operations

The following table summarizes ICG’s intangible assets from continuing operations (in thousands):

	Useful Life	As of December 31, 2013
Intangible Assets		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Customer relationships	1-11 years	$	45,601	$	(9,546	)	$	36,055
Trademarks/trade names	3-11 years		15,813		(2,373	)		13,440
Technology	5-10 years		9,527		(2,161	)		7,366
Non-compete agreements	2-5 years		3,666		(2,172	)		1,494
			74,607		(16,252	)		58,355
Other intellectual property	Indefinite		400		—			400
		$	75,007	$	(16,252	)	$	58,755

	Useful Life	As of December 31, 2012
Intangible Assets		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Customer relationships	3-11 years	$	40,622	$	(5,386	)	$	35,236
Trademarks/trade names	3-11 years		14,713		(866	)		13,847
Technology	10 years		10,068		(588	)		9,480
Non-compete agreements	2-5 years		3,666		(942	)		2,724
			69,069		(7,782	)		61,287
Other intellectual property	Indefinite		400		—			400
		$	69,469	$	(7,782	)	$	61,687

Remaining Estimated Amortization Expense

Remaining estimated amortization expense is as follows (in thousands):

2014	$	9,169
2015		8,246
2016		7,844
2017		7,429
2018		6,175
Thereafter		19,492
Remaining amortization expense	$	58,355