GOODWILL AND INTANGIBLE ASSETS

The changes in the carrying amount of goodwill for the nine-month period ended September 30, 2018, and for the year ended December 31, 2017, are as follows:



	LCD						CDD					Total
	September 30, 2018			December 31, 2017			September 30, 2018			December 31, 2017		September 30, 2018			December 31, 2017
Balance as of January 1	$	3,673.9		$	3,644.8		$	3,727.0		$	2,779.6	$	7,400.9		$	6,424.4
Goodwill acquired during the period	3.9			198.5			45.6			811.3		49.5			1,009.8
Reclassification of goodwill as held for sale	—			(170.5		)	—			—		—			(170.5		)
Dispositions	(24.1		)	—			—			—		(24.1		)	—
Adjustments to goodwill	(4.2		)	1.1			(59.4		)	136.1		(63.6		)	137.2
Balance at end of period	$	3,649.5		$	3,673.9		$	3,713.2		$	3,727.0	$	7,362.7		$	7,400.9

The components of identifiable intangible assets are as follows:



	September 30, 2018							December 31, 2017
	Gross Carrying Amount		Accumulated Amortization			Net		Gross Carrying Amount		Accumulated Amortization			Net
Customer relationships	$	4,115.7	$	(1,106.5	)	$	3,009.2	$	4,118.1	$	(992.8	)	$	3,125.3
Patents, licenses and technology	454.6		(207.8		)	246.8		457.9		(188.6		)	269.3
Non-compete agreements	75.8		(53.0		)	22.8		75.8		(48.3		)	27.5
Trade names	405.0		(183.3		)	221.7		407.9		(167.9		)	240.0
Land use right	10.8		(3.7		)	7.1		10.8		(2.5		)	8.3
Canadian licenses	483.3		—			483.3		495.7		—			495.7
	$	5,545.2	$	(1,554.3	)	$	3,990.9	$	5,566.2	$	(1,400.1	)	$	4,166.1

Amortization of intangible assets for the three-month periods ended September 30, 2018, and 2017, was $54.7 and $54.6, respectively, and $175.5 and $153.6 for the nine-month periods ended September 30, 2018, and 2017. Amortization expense for the net carrying amount of intangible assets is estimated to be $51.3 for the remainder of fiscal 2018, $222.5 in fiscal 2019, $214.4 in fiscal 2020, $208.1 in fiscal 2021, $202.5 in fiscal 2022 and $2,522.8 thereafter.