v3.8.0.1

Business Acquisition - Additional Information (Detail) - USD ($)		3 Months Ended		6 Months Ended
	Sep. 14, 2016	Dec. 29, 2017	Dec. 30, 2016	Dec. 29, 2017	Dec. 30, 2016	Jun. 30, 2017
Business Acquisition [Line Items]
Total cash consideration, net of cash acquired					$ 9,917,000
Restricted cash in connection with business acquisition		$ 3,423,000	$ 3,126,000	$ 3,423,000	3,126,000	$ 3,312,000
Foreign currency translation adjustment gain (loss)		44,000	(1,903,000)	569,000	(1,162,000)
Global CEM Solutions, Ltd.
Business Acquisition [Line Items]
Total cash consideration, net of cash acquired	$ 13,043,000
Business acquisition, cash acquired	$ 500,000
Percentage of ownership acquired	100.00%
Restricted cash in connection with business acquisition	$ 3,400,000		$ 3,100,000		3,100,000
Foreign currency translation adjustment gain (loss)				600,000	(1,200,000)
Capital lease assets		1,200,000		1,200,000		1,900,000
Capital lease liability		$ 1,200,000		1,200,000		$ 1,400,000
Transaction costs related to acquisition				0
Global CEM Solutions, Ltd. | Customer relationships
Business Acquisition [Line Items]
Intangible assets acquired				$ 4,400,000
Estimated useful life				10 years
Global CEM Solutions, Ltd. | Backlog
Business Acquisition [Line Items]
Intangible assets acquired				$ 100,000
Estimated useful life				3 years
Global CEM Solutions, Ltd. | Selling, General and Administrative Expenses
Business Acquisition [Line Items]
Transaction costs related to acquisition					$ 1,500,000

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities.

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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The total gross amount less the charge for the use of the long-lived depreciable assets subject to a lease meeting the criteria for capitalization.

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The cash inflow associated with the acquisition of business during the period (for example, cash that was held by the acquired business).

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of increase in assets, excluding financial assets, lacking physical substance with a definite life, from an acquisition.

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature, attributable to parent entity.

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The cash outflow associated with the acquisition of a business, net of the cash acquired from the purchase.

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Amount of cash and cash equivalents restricted as to withdrawal or usage, classified as noncurrent. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Cash equivalents include, but are not limited to, short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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