Goodwill And Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2013

Goodwill And Intangible Assets [Abstract]

Changes In The Carrying Amount Of Goodwill

Activity related to goodwill consisted of the following (in thousands):

	2013		2012
Balance, beginning of year	$	160,936	$	132,038
Preliminary purchase price allocations for acquisitions (Note 7)		32,041		29,132
Purchase accounting adjustments		533		(234	)
Balance, end of year	$	193,510	$	160,936

Summary Of Intangible Assets

Following is a summary of the Company's intangible assets that are subject to amortization (in thousands):

	Year Ended December 31,
	2013							2012
	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Customer relationships	$	31,156	$	(10,835	)	$	20,321	$	22,682	$	(7,299	)	$	15,383
Non-compete agreements		1,477		(715	)		762		1,156		(425	)		731
Customer backlog		402		(170	)		232		306		(184	)		122
Trade name		159		(83	)		76		265		(204	)		61
Internally developed software		4,604		(508	)		4,096		1,642		(589	)		1,053
Total	$	37,798	$	(12,311	)	$	25,487	$	26,051	$	(8,701	)	$	17,350

Estimated Useful Lives Of Identifiable Intangible Assets

The estimated useful lives of identifiable intangible assets are as follows:

Customer relationships	3 – 10 years
Non-compete agreements	2 – 5 years
Customer backlog	6 – 8 months
Internally developed software	1 – 7 years
Trade name	1 year

Estimated Annual Amortization Expense

Estimated annual amortization expense for the next five years ended December 31 is as follows (in thousands):

2014	$	7,631
2015	$	5,824
2016	$	4,770
2017	$	2,411
2018	$	1,459
Thereafter	$	3,392