Intangible Assets and Acquisitions (Tables)

9 Months Ended

Sep. 30, 2014

Intangible Assets and Acquisitions [Abstract]

Amortizable intangible assets consist of the following (in thousands):



		September 30, 2014				December 31, 2013
	Avg. Life (years)	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Non-compete agreements	3	$	5,586	$	5,415	$	6,337	$	6,102
Customer relationships	2	75,445		73,602		74,799		71,899
Vendor relationships	11	7,538		2,130		7,538		1,704
Total		$	88,569	$	81,147	$	88,674	$	79,705

Estimated Amortization Expense

Estimated remaining amortization expense, assuming current intangible balances and no new acquisitions, for each of the years ending December 31, is as follows (in thousands):



	Estimated Amortization Expense
2014	$	675
2015	1,871
2016	747
2017	568
2018	445
Thereafter	3,116
Total	$	7,422

Changes in Recorded Goodwill

A summary of the changes in recorded goodwill follows (in thousands):



	Nine Months Ended			Year Ended
	September 30, 2014			December 31, 2013
Balance as of January 1,	$	1,364,549		$	1,344,665
Additions from acquisitions	4,400			28,282
Goodwill impairments and write-offs related to stores sold or closed	(1,971		)	(9,038		)
Post purchase price allocation adjustments	(610		)	640
Balance as of the end of the period	$	1,366,368		$	1,364,549