Goodwill and Intangible Assets - Changes in Goodwill (Detail) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2020	Dec. 31, 2019
Goodwill [Line Items]
Beginning Balance, Goodwill Net	$ 311,247	$ 302,517
Acquisition-Related	0	3,623
Effect of Foreign Currency	(6,556)	5,107
Ending Balance, Goodwill Net	304,691	311,247
Americas [Member]
Goodwill [Line Items]
Beginning Balance, Goodwill Net	259,953	255,436
Acquisition-Related	0	1,202
Effect of Foreign Currency	(3,954)	3,315
Ending Balance, Goodwill Net	255,999	259,953
EMEA [Member]
Goodwill [Line Items]
Beginning Balance, Goodwill Net	51,294	47,081
Acquisition-Related	0	2,421
Effect of Foreign Currency	(2,602)	1,792
Ending Balance, Goodwill Net	$ 48,692	$ 51,294

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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