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Debt instrument pre payment premium percentage.

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Debt issuance costs capitalized.

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LIBOR floor rate.

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Line of credit facility contractual term.

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Line Of Credit Facility Renewal Period.

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Number Of Financial Institutions That Provide For Aggregate Borrowings.

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Percentage of borrowing base.

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Face (par) amount of debt instrument at time of issuance.

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Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets.

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Amount of the required periodic payments applied to principal.

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The percentage points added to the reference rate to compute the variable rate on the interest rate derivative.

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Fixed interest rate related to the interest rate derivative.

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Nominal or face amount used to calculate payment on derivative.

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Fair value as of the balance sheet date of interest rate derivative assets, net of interest rate derivative liabilities, which includes all such derivative instruments in hedging and nonhedging relationships that are recognized on the balance sheet.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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The effective interest rate during the reporting period.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Debt - Additional Information (Detail)			12 Months Ended
Debt - Additional Information (Detail)	Sep. 27, 2019 USD ($)	Feb. 01, 2019 USD ($)	Dec. 31, 2019 USD ($) Institution	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Apr. 03, 2019 USD ($)	Sep. 30, 2016 USD ($)
Debt Instrument [Line Items]
Debt instrument, prepaid principal amount			$ 525,000,000
Debt instrument, pre-payment premium percentage			1.00%
Interest expense			$ 44,135,000	$ 16,942,000	$ 30,990,000
Debt Instrument Outstanding Balance Prepaid			100,000,000
Interest Rate Hedge [Member]
Debt Instrument [Line Items]
Interest rate swap agreement, notional amount			$ 250,000,000	290,000,000
Revolving Lines of Credit [Member]
Debt Instrument [Line Items]
Borrowing capacity in the form of letters of credit				11,482,000
Revolving Lines of Credit [Member] \| Base Rate [Member]
Debt Instrument [Line Items]
Line of credit base interest rate			1.25%
Jaban [Member]
Debt Instrument [Line Items]
Borrowing capacity in the form of letters of credit				21,126,000
Total borrowings outstanding				$ 0	0
Number of financial institutions for available lines of credit and borrowing arrangements \| Institution			2
Aggregate borrowings expire and renewal period			3 months
2016 Term Loan Facility [Member] \| Repricing Amendment [Member] \| LIBOR [Member] \| Minimum [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate			1.75%
2016 Term Loan Facility [Member] \| Repricing Amendment [Member] \| LIBOR [Member] \| Maximum [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate			4.00%
2016 Term Loan Facility [Member] \| Repricing Amendment [Member] \| LIBOR Floor Rate [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate			0.75%
2016 Term Loan Facility [Member] \| 2019 Incremental Term Loan Facility [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate			2.00%	1.75%
LIBOR floor rate			1.00%	0.75%
Newport [Member] \| Secured Debt [Member] \| Interest Rate Floor [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate			0.00%
Newport [Member] \| Secured Debt [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate			0.75%
Newport [Member] \| Revolving Lines of Credit [Member]
Debt Instrument [Line Items]
Total borrowings outstanding				$ 3,131,000	$ 3,389,000
Newport [Member] \| Asset Based Credit Agreement [Member]
Debt Instrument [Line Items]
Debt issuance cost capitalized			$ 785,000
Contractual term			5 years
Capitalized debt issuance cost			$ 216,000
Newport [Member] \| Asset Based Credit Agreement [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate terms				Borrowings under the ABL Facility bear interest at a rate per annum equal to, at the Company’s option, any of the following, plus, in each case, an applicable margin: (a) a base rate determined by reference to the highest of (1) the federal funds effective rate plus 0.50%, (2) the “prime rate” quoted in The Wall Street Journal, (3) a LIBOR rate determined by reference to the costs of funds for U.S. dollar deposits for an interest period of one month adjusted for certain additional costs, plus 1.00% and (4) a floor of 0.00%; and (b) a LIBOR rate determined by reference to the costs of funds for U.S. dollar deposits for the interest period relevant to such borrowing adjusted for certain additional costs, with a floor of 0.00%. The initial applicable margin for borrowings under the ABL Facility is 0.50% with respect to base rate borrowings and 1.50% with respect to LIBOR borrowings. Commencing with the completion of the first fiscal quarter ending after the closing of the ABL Facility, the applicable margin for borrowings thereunder is subject to upward or downward adjustment each fiscal quarter, based on the average historical excess availability during the preceding quarter.
Debt instrument, interest rate			0.50%
Percentage of borrowing based on eligible accounts			85.00%
Percentage of borrowing based on lower of cost or market value of certain eligible inventory			65.00%
Percentage of borrowing based on net orderly liquidation value of certain eligible inventory			85.00%
Percentage of borrowing base			30.00%
Initial commitment fee percentage			0.25%
Newport [Member] \| Asset Based Credit Agreement [Member] \| Secured Debt [Member] \| Federal Funds Rate [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate			0.50%
Newport [Member] \| Asset Based Credit Agreement [Member] \| Secured Debt [Member] \| Adjusted One Month LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate			1.00%
Newport [Member] \| Asset Based Credit Agreement [Member] \| Secured Debt [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate			1.50%
Newport [Member] \| Asset Based Credit Agreement [Member] \| Revolving Lines of Credit [Member]
Debt Instrument [Line Items]
Secured term loan, face amount			$ 100,000,000
Clause to accelerate the scheduled maturities			If at any time the aggregate amount of outstanding loans, protective advances, unreimbursed letter of credit drawings and undrawn letters of credit under the ABL Facility exceeds the lesser of (a) the commitment amount and (b) the borrowing base, we are required to repay outstanding loans and/or cash collateralize letters of credit, with no reduction of the commitment amount. During any period that the amount available under the ABL Facility is less than the greater of (i) $8,500 and (ii) 10.0% of the lesser of (1) the commitment amount and (2) the borrowing base for three consecutive business days, until the time when excess availability has been at least the greater of (i) $8,500 and (ii) 10.0% of the lesser of (1) the commitment amount and (2) the borrowing base, in each case, for 30 consecutive calendar days (a “Cash Dominion Period”), or during the
Clause to maintain a Fixed Charge Coverage Ratio			From the time when the Company has excess availability less than the greater of (a) 10.0% of the lesser of (1) the commitment amount and (2) the borrowing base and (b) $8,500, until the time when the Company has excess availability equal to or greater than the greater of (a) 10.0% of the lesser of (1) the commitment amount and (2) the borrowing base and (b) $8,500 for 30 consecutive days, or during the continuance of an event of default, the ABL Credit Agreement requires the Company to maintain a Fixed Charge Coverage Ratio (as defined in the ABL Credit Agreement) tested on the last day of each fiscal quarter of at least 1.0 to 1.0.
Newport [Member] \| Asset Based Credit Agreement [Member] \| Letter of Credit [Member]
Debt Instrument [Line Items]
Borrowing capacity in the form of letters of credit			$ 25,000,000
Newport [Member] \| 2016 Term Loan Facility [Member] \| Federal Funds Rate [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate			0.50%
Newport [Member] \| 2016 Term Loan Facility [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Secured term loan, face amount			$ 780,000
Debt instrument, interest rate terms			borrowings under the Term Loan Facility bear interest per annum at one of the following rates selected by the Company: (a) a base rate determined by reference to the highest of (1) the federal funds effective rate plus 0.50%, (2) the "prime rate" quoted in1Siva The Wall Street Journal, (3) a London Interbank Offer Rate ("LIBOR") rate determined by reference to the costs of funds for U.S. dollar deposits for an interest period of one month adjusted for certain additional costs, plus 1.00%, and (4) a floor of 1.75%, plus, in each case, an applicable margin; or (b) a LIBOR rate determined by reference to the costs of funds for U.S. dollar deposits for the interest period relevant to such borrowing adjusted for certain additional costs, subject to a LIBOR rate floor of 0.0%, plus an applicable margin. The Company has elected the interest rate as described in clause (b) of the foregoing sentence. The Term Loan Credit Agreement provides that, unless an alternate rate of interest is agreed, all loans will be determined by reference to the base rate if the LIBOR rate cannot be ascertained, if regulators impose material restrictions on the authority of a lender to make LIBOR rate loans, or for other reasons. The 2016 Term Loan Facility was issued with original issue discount of 1.00% of the principal amount thereof.
Debt instrument, interest rate			0.00%
Debt instrument, issue discount percentage on principal			1.00%
Deferred finance fees, original issue discount and re-pricing fee, gross			$ 28,747,000,000
Newport [Member] \| 2016 Term Loan Facility [Member] \| Secured Debt [Member] \| Interest Rate Hedge [Member]
Debt Instrument [Line Items]
Interest rate swap agreement, notional amount			$ 300,000,000				$ 335,000,000
Interest rate swap agreement, interest rate							1.198%
Interest rate swap agreement, credit spread rate			1.75%
Interest rate swap agreement, fair value			$ 6,510,000
Newport [Member] \| 2016 Term Loan Facility [Member] \| Secured Debt [Member] \| Adjusted One Month LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate			1.00%
Newport [Member] \| 2016 Term Loan Facility [Member] \| Secured Debt [Member] \| Floor Rate [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate			1.75%
Newport [Member] \| 2016 Term Loan Facility [Member] \| 2019 Incremental Term Loan Facility [Member]
Debt Instrument [Line Items]
Deferred finance fees, original issue discount and re-pricing fee, gross			$ 11,362,000
Newport [Member] \| 2016 Term Loan Facility [Member] \| Secured Debt Repricing Amendment 1 [Member] \| Interest Rate Hedge [Member]
Debt Instrument [Line Items]
Interest rate swap agreement, notional amount			$ 300,000,000			$ 300,000,000
Interest rate swap agreement, interest rate						2.309%	1.198%
Interest rate swap agreement, credit spread rate			1.75%
Newport [Member] \| 2019 Incremental Term Loan Facility [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Secured term loan, face amount	$ 896,839,000
Debt instrument, interest rate terms			The 2019 Term Loan Refinancing Facility matures on February 2, 2026, and bears interest at a rate per annum equal to, at the Company’s option, a base rate or LIBOR rate (as described above) plus, in each case, an applicable margin equal to 0.75% with respect to base rate borrowings and 1.75% with respect to LIBOR borrowings. The 2019 Term Loan Refinancing Facility was issued with original issue discount of 0.25% of the principal amount thereof.
Debt instrument, prepaid principal amount	$ 50,000,000
Newport [Member] \| 2019 Incremental Term Loan Facility [Member] \| Secured Debt Repricing Amendment 1 [Member]
Debt Instrument [Line Items]
Secured term loan, face amount			$ 892,354,000
Debt instrument, interest rate			3.45%
Debt instrument, prepaid principal amount			$ 12,646,000
Term loan maturity date			Feb. 02, 2026
Debt instrument, quarterly payment percentage			0.25
Newport [Member] \| 2019 Incremental Term Loan Facility [Member] \| Secured Debt Repricing Amendment 1 [Member] \| Interest Rate Hedge [Member]
Debt Instrument [Line Items]
Interest rate swap agreement, fair value			$ 843,000
Newport [Member] \| 2019 Term Loan Refinancing Facility [Member]
Debt Instrument [Line Items]
Deferred finance fees, original issue discount and re-pricing fee, gross			$ 11,810,000	$ 2,242,000
Newport [Member] \| 2019 Term Loan Refinancing Facility [Member] \| Base Rate [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate			1.75%
Newport [Member] \| 2019 Term Loan Refinancing Facility [Member] \| Secured Debt [Member]
Debt Instrument [Line Items]
Debt instrument, issue discount percentage on principal			0.25%
Electro Scientific Industries Inc [Member] \| 2016 Term Loan Facility [Member] \| Secured Debt [Member] \| Interest Rate Hedge [Member]
Debt Instrument [Line Items]
Interest rate swap agreement, notional amount						$ 300,000,000
Interest rate swap agreement, interest rate						2.309%
Electro Scientific Industries Inc [Member] \| 2016 Term Loan Facility [Member] \| Secured Debt [Member] \| Interest Rate Floor [Member]
Debt Instrument [Line Items]
Term loan maturity date						Mar. 31, 2023
Electro Scientific Industries Inc [Member] \| 2019 Incremental Term Loan Facility [Member] \| Definitive Merger Agreement[Member]
Debt Instrument [Line Items]
Debt instrument, interest rate terms		Prior to the effectiveness of Amendment No. 6 (as defined below), the 2019 Incremental Term Loan Facility had a maturity date of February 1, 2026 and bore interest at a rate per annum equal to, at the Company’s option, a base rate or LIBOR rate (as described above) plus, in each case, an applicable margin equal to 1.25% with respect to base rate borrowings and 2.25% with respect to LIBOR borrowings.
Debt instrument, issue discount percentage on principal		1.00%
Term loan maturity date		Feb. 01, 2026
Electro Scientific Industries Inc [Member] \| 2019 Incremental Term Loan Facility [Member] \| Maximum [Member] \| Definitive Merger Agreement[Member]
Debt Instrument [Line Items]
Business acquisition, term loan debt financing		$ 650,000,000
Electro Scientific Industries Inc [Member] \| 2019 Incremental Term Loan Facility [Member] \| LIBOR [Member] \| Definitive Merger Agreement[Member]
Debt Instrument [Line Items]
Debt instrument, interest rate		2.25%
Electro Scientific Industries Inc [Member] \| 2019 Incremental Term Loan Facility [Member] \| Base Rate [Member] \| Definitive Merger Agreement[Member]
Debt Instrument [Line Items]
Debt instrument, interest rate		1.25%