Debt - Senior Secured Asset-Based Revolving Credit Facility - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2020 USD ($)
Debt Instrument [Line Items]
Availability under credit facility	$ 8,500,000
Percentage of commitment amount available	10.00%
Number of consecutive business days for borrowing base	30 days
Asset Based Credit Agreement [Member]
Debt Instrument [Line Items]
Availability under credit facility	$ 8,500,000
Percentage of commitment amount available	10.00%
Number of consecutive business days for borrowing base	3 days
Electro Scientific Industries Inc [Member] | Asset Based Credit Agreement [Member] | Revolving Lines of Credit [Member]
Debt Instrument [Line Items]
Secured term loan, face amount	$ 100,000,000.0
Electro Scientific Industries Inc [Member] | Asset Based Credit Agreement [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Percentage of borrowing based on eligible accounts	85.00%
Percentage of borrowing based on lower of net book value of eligible inventory	20.00%
Percentage of borrowing base	30.00%
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%
Electro Scientific Industries Inc [Member] | Asset Based Credit Agreement [Member] | Letter of Credit [Member]
Debt Instrument [Line Items]
Borrowing capacity in the form of letters of credit	$ 25,000,000.0
Newport Corporation | Secured Debt [Member] | Floor Rate [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate	0.00%
Newport Corporation | Asset Based Credit Agreement [Member] | Revolving Lines of Credit [Member]
Debt Instrument [Line Items]
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, the Company is 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) $8.5 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) $8.5 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 continuance of an event of default, the Company is required to repay outstanding loans and/or cash collateralize letters of credit with the cash that it is required to deposit daily in a collection account maintained with the administrative agent under the ABL Facility. During a Cash Dominion Period, the Company may make borrowings under the ABL Facility subject to the satisfaction of customary funding conditions.
Newport Corporation | Asset Based Credit Agreement [Member] | Secured Debt [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate	0.50%
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.
Initial commitment fee percentage	0.25%
Number of consecutive business days for borrowing base	30 days
Debt instrument, collateral	All obligations under the ABL Facility are guaranteed by certain of the Company’s domestic subsidiaries and are collateralized by substantially all of the Company’s assets and the assets of such subsidiaries, subject to certain exceptions and exclusions
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) $8.5 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) $8.5 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 Corporation | Asset Based Credit Agreement [Member] | Secured Debt [Member] | Maximum [Member]
Debt Instrument [Line Items]
Percentage of line of credit facility excess availability commitment fee	10.00%
Line of credit facility excess availability amount	$ 8,500,000
Newport Corporation | Asset Based Credit Agreement [Member] | Secured Debt [Member] | Minimum [Member]
Debt Instrument [Line Items]
Percentage of line of credit facility excess availability commitment fee	10.00%
Line of credit facility excess availability amount	$ 8,500,000
Fixed charge coverage ratio	1.0
Newport Corporation | Asset Based Credit Agreement [Member] | Secured Debt [Member] | Adjusted One Month LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate	1.00%
Newport Corporation | Asset Based Credit Agreement [Member] | Secured Debt [Member] | Floor Rate [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate	0.00%
Newport Corporation | Asset Based Credit Agreement [Member] | Secured Debt [Member] | Federal Funds Rate [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate	0.50%
Newport Corporation | Asset Based Credit Agreement [Member] | Secured Debt [Member] | LIBOR [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate	1.50%