Contingencies	3 Months Ended
Mar. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Contingencies	Contingencies Legal matters From time to time we are involved in legal proceedings and other regulatory matters arising in the ordinary course of our business. Each reporting period, we evaluate whether or not a loss contingency related to such matters is probable and reasonably estimable under the provisions of the authoritative guidance that addresses accounting for contingencies. If a loss is probable and the potential estimate of the loss is a range, we evaluate if there is a point within the range that appears at the time to be a better estimate than any other point in the range, and if so, that amount is accrued. If we conclude that no amount in the range appears to be a better estimate than any other, we accrue the minimum amount in the range. We monitor developments in legal matters that could affect estimates we have previously accrued and update our estimates as appropriate based on subsequent developments. In the first quarter of fiscal 2017, we received a demand for payments totaling approximately $1.5 million relating to a government inquiry which commenced in 2016. We determined that it is probable that we will incur a loss in connection with this matter and accrued an amount as of December 31, 2016 based on our reasonable estimate of this loss. We accrued an additional amount as of the quarter ended April 1, 2017, based on our updated estimate of this loss. In February 2018, we resolved the matter. In connection with the resolution, we have agreed to make payments of approximately $0.5 million, consistent with our accrual for the matter as of December 30, 2017. Additionally, in the fourth quarter of fiscal 2017, we received a demand for payments totaling approximately $4.9 million plus additional yet to be determined amounts relating to two government inquiries, both of which commenced in 2016. We determined that it is probable that we will incur a loss in connection with these matters and accrued an amount as of December 30, 2017 based on the low end of the range of our reasonable estimate of this loss. There has been no change to the estimated range of losses in the first quarter of fiscal 2018. The amount accrued to date is not material to our financial statements.

Contingencies

Legal matters

From time to time we are involved in legal proceedings and other regulatory matters arising in the ordinary course of our business. Each reporting period, we evaluate whether or not a loss contingency related to such matters is probable and reasonably estimable under the provisions of the authoritative guidance that addresses accounting for contingencies. If a loss is probable and the potential estimate of the loss is a range, we evaluate if there is a point within the range that appears at the time to be a better estimate than any other point in the range, and if so, that amount is accrued. If we conclude that no amount in the range appears to be a better estimate than any other, we accrue the minimum amount in the range. We monitor developments in legal matters that could affect estimates we have previously accrued and update our estimates as appropriate based on subsequent developments.

In the first quarter of fiscal 2017, we received a demand for payments totaling approximately $1.5 million relating to a government inquiry which commenced in 2016. We determined that it is probable that we will incur a loss in connection with this matter and accrued an amount as of December 31, 2016 based on our reasonable estimate of this loss. We accrued an additional amount as of the quarter ended April 1, 2017, based on our updated estimate of this loss. In February 2018, we resolved the matter. In connection with the resolution, we have agreed to make payments of approximately $0.5 million, consistent with our accrual for the matter as of December 30, 2017.

Additionally, in the fourth quarter of fiscal 2017, we received a demand for payments totaling approximately $4.9 million plus additional yet to be determined amounts relating to two government inquiries, both of which commenced in 2016. We determined that it is probable that we will incur a loss in connection with these matters and accrued an amount as of December 30, 2017 based on the low end of the range of our reasonable estimate of this loss. There has been no change to the estimated range of losses in the first quarter of fiscal 2018. The amount accrued to date is not material to our financial statements.