Other Assets

Other assets as of August 31, 2013 and 2012 are as follows:



	2013		2012
	(Dollars in thousands)
Goodwill	$	85,063	$	81,693
Customer lists, less accumulated amortization of $20,063 and $32,883, respectively	16,352		20,694
Non-compete covenants, less accumulated amortization of $6,129 and $6,896, respectively	812		1,987
Trademarks and other intangible assets, less accumulated amortization of $19,853 and $15,949, respectively	18,312		22,185
Notes receivable	143,343		173,054
Long-term receivable	38,704		37,589
Prepaid pension and other benefits	187,270		86,477
Capitalized major maintenance	109,408		70,554
Other	56,896		24,053
	$	656,160	$	518,286

During the years ended August 31, 2013 and 2012, we had acquisitions which resulted in $8.3 million and $55.5 million of goodwill, respectively. There were no dispositions resulting in a decrease to goodwill during fiscal 2013 and 2012.

During the years ended August 31, 2013 and 2012, intangible assets acquired totaled $1.5 million and $23.4 million, respectively.

Intangible assets amortization expense for the years ended August 31, 2013, 2012 and 2011, was $10.0 million, $12.7 million and $11.0 million, respectively. The estimated annual amortization expense related to intangible assets subject to amortization for the next five years is as follows:



	(Dollars in thousands)
Year 1	$	7,997
Year 2	6,479
Year 3	5,927
Year 4	4,545
Year 5	2,507
Thereafter	8,021
	$	35,476

The capitalized major maintenance activity is as follows:



	Balance at Beginning of Year		Cost Deferred		Amortization			Write-Offs	Balance at End of Year
	(Dollars in thousands)
2013	$	70,554	$	73,701	$	(34,847	)		$	109,408
2012	80,752		23,443		(33,641		)		70,554
2011	19,097		92,129		(30,474		)		80,752