Subsequent Events	12 Months Ended
Jun. 30, 2017
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events July 2017 Restructuring Plan On July 25, 2017, the Company committed to an additional restructuring plan (the “July 2017 Plan”) to reduce its cost structure. The July 2017 Plan included reducing the Company's global headcount by approximately 600 employees. The July 2017 Plan, which the Company expects to be substantially completed by the end of the first quarter of fiscal year 2018, is expected to result in total pre-tax charges of approximately $50 million, primarily in the first quarter of fiscal year 2018. These charges are expected to be comprised of cash expenditures on severance and employee-related costs. Planned Leadership Transition On July 25, 2017 the Company’s Board of Directors appointed William D. Mosley to serve as Chief Executive Officer, of the Company effective October 1, 2017. The Board of Directors also appointed Mr. Mosley to serve as a director of the Company, effective July 25, 2017. Mr. Mosley will serve as a director until the Company’s next annual general meeting of shareholders when he is expected to stand for election by a vote of the Company’s shareholders. On July 25, 2017, the Company also announced that Stephen J. Luczo will step down from his position as Chief Executive Officer, effective October 1, 2017. Mr. Luczo will remain with the Company in the role of Executive Chairman effective October 1, 2017 and will continue to serve as Chairman of the Board of Directors. As previously announced on June 2, 2017, Philip G. Brace, President of Cloud Systems and Silicon group, will be leaving the Company. On July 20, 2017, the Company and Mr. Brace agreed that the effective date of his departure will be October 2, 2017. Dividend Declared On July 25, 2017, the Company's Board of Directors approved and declared a quarterly cash dividend of $0.63 per share, which will be payable on October 4, 2017 to shareholders of record as of the close of business on September 20, 2017.

Subsequent Events

July 2017 Restructuring Plan

On July 25, 2017, the Company committed to an additional restructuring plan (the “July 2017 Plan”) to reduce its cost structure. The July 2017 Plan included reducing the Company's global headcount by approximately 600 employees. The July 2017 Plan, which the Company expects to be substantially completed by the end of the first quarter of fiscal year 2018, is expected to result in total pre-tax charges of approximately $50 million, primarily in the first quarter of fiscal year 2018. These charges are expected to be comprised of cash expenditures on severance and employee-related costs.

Planned Leadership Transition

On July 25, 2017 the Company’s Board of Directors appointed William D. Mosley to serve as Chief Executive Officer, of the Company effective October 1, 2017. The Board of Directors also appointed Mr. Mosley to serve as a director of the Company, effective July 25, 2017. Mr. Mosley will serve as a director until the Company’s next annual general meeting of shareholders when he is expected to stand for election by a vote of the Company’s shareholders. On July 25, 2017, the Company also announced that Stephen J. Luczo will step down from his position as Chief Executive Officer, effective October 1, 2017. Mr. Luczo will remain with the Company in the role of Executive Chairman effective October 1, 2017 and will continue to serve as Chairman of the Board of Directors.

As previously announced on June 2, 2017, Philip G. Brace, President of Cloud Systems and Silicon group, will be leaving the Company. On July 20, 2017, the Company and Mr. Brace agreed that the effective date of his departure will be October 2, 2017.

Dividend Declared

On July 25, 2017, the Company's Board of Directors approved and declared a quarterly cash dividend of $0.63 per share, which will be payable on October 4, 2017 to shareholders of record as of the close of business on September 20, 2017.