Goodwill and Other Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2014

Goodwill and Other Intangible Assets [Abstract]

Other Intangible Assets

Our intangible assets subject to amortization are summarized as of March 31, 2014 as follows:

			March 31, 2014
	Weighted Average Remaining Amortization Period (Years)		Gross Carrying Amount		Accumulated Amortization
Purchased software		3.2	$	32,357	$	17,912
Capitalized software		4.4		2,506		1,729
Customer relationships		5.1		46,333		24,498
Backlog		0.8		9,680		9,506
Trade names		6.8		1,463		645
Non-competes		3.1		3,190		1,788
Total			$	95,529	$	56,078

Estimated Future Amortization Expense

Estimated aggregate amortization expense for our intangible assets, which become fully amortized in 2023, is as follows:

For the remaining nine months of the year ending December 31:	2014		9,342
For the year ending December 31:	2015		10,063
	2016		8,043
	2017		5,861
	2018		3,625
	Thereafter		2,517
	Total	$	39,451

Amortization Expense

Amortization expense in the three months ended March 31, 2014 and 2013 is set forth in the following table:

	Three Months Ended March 31,
	2014		2013
Amortization included in cost of sales:
Purchased software	$	1,258	$	1,126
Capitalized software		43		37
Backlog		58		359
Subtotal		1,359		1,522
Amortization included in operating expenses:
Customer relationships		1,758		1,904
Trade names		40		40
Non-competes		115		115
Subtotal		1,913		2,059
Total amortization	$	3,272	$	3,581