Subsequent Events |
3 Months Ended |
|---|---|
Mar. 30, 2018 | |
| Subsequent Events [Abstract] | |
| Subsequent Events | Note 16: Subsequent Events As announced on October 10, 2017, ON Semiconductor entered into an agreement to acquire a 30 percent incremental interest in Aizu Fujitsu Semiconductor Manufacturing Limited (“AFSM”), which operates an 8-inch wafer fabrication facility in Aizu-Wakamatsu. On April 1, 2018, (the "second closing date"), the purchase of such incremental interest for approximately $20.0 million in cash closed, resulting in a 40 percent ownership stake in AFSM by the Company. The Company previously held a 10 percent interest, which was accounted for as a cost method investment. Subject to the fulfillment of certain conditions, the Company will be required to increase its ownership to 60 percent between one and six months following the second closing date (the "third closing date") and will be required to increase its ownership to 100 percent between nine and 18 months following the third closing date. |