Long-Lived Assets (Tables)

12 Months Ended

Dec. 31, 2015

The consolidated balances consisted of the following for the periods stated:



	For the Year Ended December 31,
	2015		2014		2013
	(Dollars in thousands)
Depreciation	$	8,570	$	10,200	$	9,664
Amortization	4,735		5,722		4,965
Accretion	665		755		538
Total depreciation, amortization and accretion	$	13,970	$	16,677	$	15,167

The components of the changes in the asset retirement obligation liabilities for the periods stated were as follows:



	Short-Term Portion			Long-Term Portion			Total
	(Dollars in thousands)
Balance at January 1, 2014	$	358		$	7,599		$	7,957
Accretion	28			727			755
Amounts Paid	(399		)	—			(399		)
Reductions recorded	(141		)	(1,025		)	(1,166		)
Reclassifications	496			(496		)	—
Balance at December 31, 2014	$	342		$	6,805		$	7,147
Accretion	125			540			665
Amounts Paid	(176		)	—			(176		)
Increases and (reductions) recorded	(55		)	258			203
Reclassifications	60			(60		)	—
Balance at December 31, 2015	$	296		$	7,543		$	7,839

The accretion was recorded on the interest method utilizing the following discount rates for the specified periods:




Period	Discount Rate
2015 – January 1 through December 31 – Additions⁽¹⁾	11.50	%
2015 – December 31 - Incremental Estimates⁽²⁾	10.48	%
2014 – January 1 through December 31 – Additions⁽¹⁾	10.48	%
2014 – December 31 - Incremental Estimates⁽²⁾	12.10	%
2013 – December 31 Additions⁽¹⁾ and Incremental Estimates	10.48	%
2013 – January 1 through September 30 – Additions⁽¹⁾	10.60	%


⁽¹⁾	Transmitters moved to new sites resulting in additional liability. Weighted average credit adjusted risk-free rate used to discount additions.


⁽²⁾	Weighted average credit adjusted risk-free rate used to discount downward revision to estimated future cash flows.

The net consolidated balance of amortizable intangible assets consisted of the following at December 31, 2015 and 2014:



		As of December 31,
		2015							2014
	Useful Life (In Years)	Gross Carrying Amount		Accumulated Amortization			Net Balance		Gross Carrying Amount		Accumulated Amortization			Net Balance
		(Dollars in thousands)
Customer relationships	10	$	25,002	$	(12,084	)	$	12,918	$	25,002	$	(9,584	)	$	15,418
Acquired technology	2 - 4	8,452		(8,339		)	113		8,452		(7,741		)	711
Non-compete agreements	3 - 5	2,370		(2,352		)	18		2,370		(2,242		)	128
Trademarks	6	5,754		(3,839		)	1,915		5,754		(2,313		)	3,441
Total amortizable intangible assets		$	41,578	$	(26,614	)	$	14,964	$	41,578	$	(21,880	)	$	19,698

Estimated amortization of intangible assets for future periods was as follows: