Acquisitions - Transaction Related Expenses as Incurred (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Business Combinations [Abstract]
Termination, restructuring, sale and strategic review costs	$ 2,221	$ 2,282
Legal, accounting and other acquisition-related costs	1,328	796
Management transition costs		1,243
Transaction-related expenses	$ 3,549	$ 4,321

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Includes, but is not limited to, one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and termination benefits associated with an ongoing benefit arrangement. Excludes expenses associated with special or contractual termination benefits, a discontinued operation or an asset retirement obligation.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Balance Type:	debit
Period Type:	duration