Amount of assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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The amount of property, plant, and equipment recognized as of the acquisition date.

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Business Acquisitions - Estimated Fair Values of Assets Acquired and Liabilities Assumed at Acquisition Date (Detail) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 18, 2018	Oct. 03, 2018	Dec. 31, 2017	Dec. 31, 2016
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net
Goodwill	$ 69,658			$ 51,613	$ 49,777
E D I Admin [Member]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net
Current assets			$ 631
Goodwill			4,871
Intangible assets			3,400
Current liabilities			(57)
Deferred revenue			(110)
Total purchase price			$ 8,735
CovalentWorks [Member]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net
Current assets		$ 244
Property and equipment		44
Goodwill		15,402
Intangible assets		7,210
Current liabilities		(56)
Deferred revenue		(42)
Total purchase price		$ 22,802