Non Controlling Interest Redeemable Convertible Preferred Stock - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended
	Jul. 31, 2015	Sep. 26, 2015
Temporary Equity [Line Items]
Unrealized gain from change in fair value of derivative liability – redeemable convertible preferred stock		$ 2.2
Deemed dividend and cumulative amount payable		0.1
Series A Preferred Stock
Temporary Equity [Line Items]
Shares canceled during period (in shares)	4,195
Redeemable convertible preferred stock’s derivative equity component		9.7
Unrealized gain from change in fair value of derivative liability – redeemable convertible preferred stock		2.2
Redemption value of the redeemable convertible Series A preferred stock		$ 35.8
Conversion price as a percentage of weighted average price per share of common stock		125.00%
Regular-way trading days following the spin-off		5 days
Conversion price per common share		$ 24.63
Issuance value of preferred stock upon liquidation		$ 1,000
Annual dividend rate		2.50%
Deemed dividend and cumulative amount payable		$ 0.1
Series A Preferred Stock | March 31
Temporary Equity [Line Items]
Accrued dividends are payable date		Mar. 31, 2015
Series A Preferred Stock | June 30
Temporary Equity [Line Items]
Accrued dividends are payable date		Jun. 30, 2015
Series A Preferred Stock | September 30
Temporary Equity [Line Items]
Accrued dividends are payable date		Sep. 30, 2015
Series A Preferred Stock | December 31
Temporary Equity [Line Items]
Accrued dividends are payable date		Dec. 31, 2015
Series A Preferred Stock | Minimum
Temporary Equity [Line Items]
Convertible preferred stock, redemption period		5 years
Viavi Net Investment | Series A Preferred Stock
Temporary Equity [Line Items]
Shares issued during period (in shares)	40,000
Amada Holdings Co. | Series A Preferred Stock
Temporary Equity [Line Items]
Shares issued during period (in shares)	35,805