Discontinued Operations - Additional Information (Details) - USD ($) $ in Millions		1 Months Ended	3 Months Ended	6 Months Ended
	Aug. 21, 2015	Nov. 30, 2015	Jun. 28, 2015	Jun. 26, 2016	Jun. 28, 2015	Jan. 31, 2016
Revolving credit facility
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Repayment of outstanding borrowings				$ 41.0
Senior notes | 7% Senior Notes due 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Stated interest rate (percent)				7.00%
Selling, General and Administrative Expenses
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Depreciation and amortization			$ 1.6		$ 3.2
Herley
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Purchase price, in cash	$ 260.0
Taxes incurred as part of transaction (up to $5.0 Million)	5.0					$ 5.0
Escrow to satisfy any purchase price adjustments	2.0
Working capital adjustments	$ 8.3	$ 8.1
Period to assert claim for indemnification	5 years
Maximum amount of future payment	$ 34.0
Transaction-related costs	11.5
Gain on sale	$ 80.8
Net payment to company after adjustments		2.7
Net payment from escrow		2.0
Difference in estimated working capital and actual working capital and the net cash position at the close of the Transaction		$ 0.7
Herley | Senior notes | 7% Senior Notes due 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Redemption				$ 175.0