Intangible Assets and Acquisitions (Tables)

6 Months Ended

Jun. 30, 2014

Intangible Assets and Acquisitions [Abstract]

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



		June 30, 2014				December 31, 2013
	Avg. Life (years)	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Non-compete agreements	3	$	6,337	$	6,145	$	6,337	$	6,102
Customer relationships	2	75,195		73,030		74,799		71,899
Vendor relationships	11	7,538		1,988		7,538		1,704
Total		$	89,070	$	81,163	$	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	$	1,370
2015	1,722
2016	685
2017	568
2018	445
Thereafter	3,117
Total	$	7,907

Changes in Recorded Goodwill

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



	Six Months Ended			Year Ended
	June 30, 2014			December 31, 2013
Balance as of January 1,	$	1,364,549		$	1,344,665
Additions from acquisitions	2,154			28,282
Goodwill impairments and write-offs related to stores sold or closed	(1,335		)	(9,038		)
Post purchase price allocation adjustments	(530		)	640
Balance as of the end of the period	$	1,364,838		$	1,364,549