NOTE 8. INTANGIBLE ASSETS

Intangible assets consisted of the following (in thousands):

	June 30,
	2018 (1)			2017
Intangible assets
Customer contracts and related customer relationships	$	435,933		$	635,895
Acquired technologies		13,237			28,503
Covenants not to compete		—			3,305
Other		804			1,545
Intangible assets		449,974			669,248
Less accumulated amortization
Customer contracts and related customer relationships		(199,018	)		(402,934	)
Acquired technologies		(8,761	)		(26,542	)
Covenants not to compete		—			(3,288	)
Other		(440	)		(1,113	)
Accumulated amortization		(208,219	)		(433,877	)
Total intangible assets, net	$	241,755		$	235,371

(1)

During FY2018, the Company removed $264.1 million in fully amortized intangible assets.

Intangible assets are primarily amortized on an accelerated basis over periods ranging from one to twenty years. The weighted-average period of amortization for customer contracts and related customer relationships as of June 30, 2018 is 14.7 years, and the weighted-average remaining period of amortization is 11.5 years. The weighted-average period of amortization for acquired technologies as of June 30, 2018 is 7.0 years, and the weighted-average remaining period of amortization is 5.7 years.

Amortization expense for the years ended June 30, 2018, 2017 and 2016 was $38.2 million, $40.7 million and $38.0 million, respectively. Expected amortization expense for each of the fiscal years through June 30, 2022 and for years thereafter is as follows (in thousands):

	Amount
Year ending June 30, 2019	$	36,225
Year ending June 30, 2020		31,566
Year ending June 30, 2021		27,970
Year ending June 30, 2022		24,281
Year ending June 30, 2023		21,686
Thereafter		100,027
Total intangible assets, net	$	241,755