GOODWILL AND INTANGIBLE ASSETS (Tables)

12 Months Ended

Dec. 31, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill and Intangible Assets

As of December 31, 2018 and 2017, goodwill and other intangible assets consisted of the following:



	2018		2017

	(in thousands)
Goodwill	$	6,341,355	$	5,703,992
Other intangible assets:
Customer-related intangible assets	$	2,486,217	$	2,078,891
Acquired technologies	896,701		722,466
Trademarks and trade names	289,588		247,688
Contract-based intangible assets	178,391		171,522
	3,850,897		3,220,567
Less accumulated amortization:
Customer-related intangible assets	860,715		685,869
Acquired technologies	351,170		210,063
Trademarks and trade names	83,234		50,849
Contract-based intangible assets	67,160		92,079
	1,362,279		1,038,860
	$	2,488,618	$	2,181,707

Schedule of Goodwill

The following table sets forth the changes in the carrying amount of goodwill for the years ended December 31, 2018 and 2017, the 2016 fiscal transition period and the year ended May 31, 2016:



	North America			Europe			Asia-Pacific			Total

	(in thousands)
Balance at May 31, 2015	$	779,734		$	485,921		$	226,178		$	1,491,833
Goodwill acquired	3,318,768			—			53,402			3,372,170
Effect of foreign currency translation	(3,872		)	(13,737		)	(15,397		)	(33,006		)
Measurement-period adjustments	(8,200		)	(411		)	7,019			(1,592		)
Balance at May 31, 2016	4,086,430			471,773			271,202			4,829,405
Goodwill acquired	—			28,820			—			28,820
Effect of foreign currency translation	(1,911		)	(45,265		)	(2,160		)	(49,336		)
Measurement-period adjustments	(1,267		)	(28		)	—			(1,295		)
Balance at December 31, 2016	4,083,252			455,300			269,042			4,807,594
Goodwill acquired	784,668			—			—			784,668
Effect of foreign currency translation	5,060			57,838			18,291			81,189
Measurement-period adjustments	23,511			—			7,030			30,541
Balance at December 31, 2017	4,896,491			513,138			294,363			5,703,992
Goodwill acquired	641,483			—			57,387			698,870
Effect of foreign currency translation	(7,463		)	(28,377		)	(25,243		)	(61,083		)
Measurement-period adjustments	(424		)	—			—			(424		)
Balance at December 31, 2018	$	5,530,087		$	484,761		$	326,507		$	6,341,355

Schedule of Expected Amortization Expense

The estimated amortization expense of acquired intangibles as of December 31, 2018 for the next five years, calculated using the currency exchange rate at the date of acquisition, if applicable, is as follows (in thousands):



2019	$	408,358
2020	378,538
2021	296,435
2022	256,054
2023	213,726