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Operating Segments and Geographic Information (Tables)
 9 Months Ended
Mar. 31, 2018
Segment Reporting [Abstract]  
Schedule of information on reportable segments
Information on reportable segments is as follows (in millions):
 
Three Months Ended March 31, 2018
 
Network and Service Enablement
 
 
 
 
 
 
 
 
 
Network Enablement
 
Service Enablement
 
Network and Service Enablement
 
Optical Security and Performance Products
 
Other Items
 
Consolidated GAAP Measures
Net revenue
$
127.0

 
$
30.1

 
$
157.1

 
$
62.3

 
$
—

 
$
219.4

 
 
 
 
 
 
 
 
 
 
 
 
Gross profit
80.9

 
20.7

 
101.6

 
32.8

 
(10.7
)
 
123.7

Gross margin
63.7
%
 
68.8
%
 
64.7
%
 
52.6
%
 
 
 
56.4
%
 
 
 
 
 
 
 
 
 
 
 
 
Operating income
 
 
 
 
9.6

 
23.6

 
(32.8
)
 
0.4

Operating margin
 
 
 
 
6.1
%
 
37.9
%
 
 
 
0.2
%
 
Three Months Ended April 1, 2017
 
Network and Service Enablement
 
 
 
 
 
 
 
 
 
Network Enablement
 
Service Enablement
 
Network and Service Enablement
 
Optical Security and Performance Products
 
Other Items
 
Consolidated GAAP Measures
Net revenue
$
103.4

 
$
28.7

 
$
132.1

 
$
63.9

 
$
—

 
$
196.0

 
 
 
 
 
 
 
 
 
 
 
 
Gross profit
67.5

 
17.7

 
85.2

 
36.7

 
(4.9
)
 
117.0

Gross margin
65.3
%
 
61.7
%
 
64.5
 %
 
57.4
%
 
 
 
59.7
 %
 
 
 
 
 
 
 
 
 
 
 
 
Operating income
 
 
 
 
(4.4
)
 
27.8

 
(38.6
)
 
(15.2
)
Operating margin
 
 
 
 
(3.3
)%
 
43.5
%
 
 
 
(7.8
)%
 
Three Months Ended
 
March 31, 2018
 
April 1, 2017
Corporate reconciling items impacting gross profit:
 
 
 
Total segment gross profit
$
134.4

 
$
121.9

Stock-based compensation
(0.8
)
 
(0.7
)
Amortization of intangibles
(6.2
)
 
(3.6
)
Other charges unrelated to core operating performance (1)
(3.7
)
 
(0.6
)
GAAP gross profit
$
123.7

 
$
117.0

 
 
 
 
Corporate reconciling items impacting operating income:
 
 
 
Total segment operating income
$
33.2

 
$
23.4

Stock-based compensation
(7.6
)
 
(8.1
)
Amortization of intangibles
(10.7
)
 
(7.1
)
Other charges unrelated to core operating performance (1)
(14.2
)
 
(5.0
)
Restructuring and related charges
(0.3
)
 
(18.4
)
GAAP operating income
$
0.4

 
$
(15.2
)

(1) During the three months ended March 31, 2018 and April 1, 2017, other charges unrelated to core operating performance primarily consisted of acquisition related costs, amortization of inventory step-up and loss on disposal of long-lived assets.

 
Nine Months Ended March 31, 2018
 
Network and Service Enablement
 
 
 
 
 
 
 
 
 
Network Enablement
 
Service Enablement
 
Network and Service Enablement
 
Optical Security and Performance Products
 
Other Items (1)
 
Consolidated GAAP Measures
Net revenue
$
360.3

 
$
91.2

 
$
451.5

 
$
164.9

 
$
—

 
$
616.4

 
 
 
 
 
 
 
 
 
 
 
 
Gross profit
225.3

 
63.6

 
288.9

 
90.4

 
(23.3
)
 
356.0

Gross margin
62.5
%
 
69.7
%
 
64.0
%
 
54.8
%
 
 
 
57.8
%
 
 
 
 
 
 
 
 
 
 
 
 
Operating income
 
 
 
 
24.8

 
63.2

 
(73.9
)
 
14.1

Operating margin
 
 
 
 
5.5
%
 
38.3
%
 
 
 
2.3
%

 
Nine Months Ended April 1, 2017
 
Network and Service Enablement
 
 
 
 
 
 
 
 
 
Network Enablement
 
Service Enablement
 
Network and Service Enablement
 
Optical Security and Performance Products
 
Other Items (1)
 
Consolidated GAAP Measures
Net revenue
$
339.0

 
$
105.7

 
$
444.7

 
$
168.6

 
$
—

 
$
613.3

 
 
 
 
 
 
 
 
 
 
 
 
Gross profit
219.5

 
66.1

 
285.6

 
96.5

 
(15.3
)
 
366.8

Gross margin
64.7
%
 
62.5
%
 
64.2
%
 
57.2
%
 
 
 
59.8
%
 
 
 
 
 
 
 
 
 
 
 
 
Operating income
 
 
 
 
5.7

 
72.1

 
(76.2
)
 
1.6

Operating margin
 
 
 
 
1.3
%
 
42.8
%
 
 
 
0.3
%

 
Nine Months Ended
 
March 31, 2018
 
April 1, 2017
Corporate reconciling items impacting gross profit:
 
 
 
Total segment gross profit
$
379.3

 
$
382.1

Stock-based compensation
(2.4
)
 
(2.7
)
Amortization of intangibles
(14.4
)
 
(11.1
)
Other charges unrelated to core operating performance (1)
(6.5
)
 
(1.5
)
GAAP gross profit
$
356.0

 
$
366.8

 
 
 
 
Corporate reconciling items impacting operating income:
 
 
 
Total segment operating income
$
88.0

 
$
77.8

Stock-based compensation
(22.8
)
 
(25.9
)
Amortization of intangibles
(25.4
)
 
(21.5
)
Other charges unrelated to core operating performance (1)
(21.4
)
 
(8.6
)
Restructuring and related charges
(4.3
)
 
(20.2
)
GAAP operating income (loss) from continuing operations
$
14.1

 
$
1.6

(1) During the nine months ended March 31, 2018 and April 1, 2017, other charges unrelated to core operating performance primarily consisted of acquisition related costs, amortization of inventory step-up, loss on disposal of long-lived assets and Company specific charges related to the separation.