Business combination integration reversal of acquisition and integration costs.

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Fees and expenses related to repricing of term loan.

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Represents Restructuring and Other Charges.

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property.

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Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

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Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).

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The net result for the period of deducting operating expenses from operating revenues.

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No definition available.

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc.

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Business Segment, Geographic Area and Product Information - Reconciliation of Segment Gross Profit to Consolidated Net Income (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended						9 Months Ended
	Aug. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018
Segment Reporting Information [Line Items]
Gross profit		$ 205,004			$ 231,860			$ 614,149	$ 769,592
Research and development		41,566			31,898			122,354	103,259
Selling, general and administrative		82,101			70,822			247,792	229,952
Fees and expenses related to term loan		642						6,489	378
Acquisition and integration costs		2,103			36			35,510	(1,132)
Restructuring and other		1,525			1,364			4,690	4,374
Amortization of intangible assets		17,020			10,695			50,299	32,786
Gain on sale of long-lived asset	$ (6,773)	(6,773)						(6,773)
Income from operations		66,820			117,045			153,788	399,975
Interest and other expense, net		11,398			2,529			31,167	10,173
Income before income taxes		55,422			114,516			122,621	389,802
Provision for income taxes		7,994			21,239			24,999	68,542
Net income		47,428	$ 37,739	$ 12,455	93,277	$ 122,862	$ 105,121	97,622	321,260
Vacuum & Analysis [Member]
Segment Reporting Information [Line Items]
Gross profit		102,826			132,835			303,060	462,418
Light & Motion [Member]
Segment Reporting Information [Line Items]
Gross profit		79,873			$ 99,025			257,562	$ 307,174
Equipment & Solutions [Member]
Segment Reporting Information [Line Items]
Gross profit		$ 22,305						$ 53,527