Income Taxes	9 Months Ended
Sep. 30, 2017
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes For the three months ended September 30, 2017 and October 1, 2016, we recorded an income tax benefit of approximately $0.3 million and a provision of approximately $1.0 million, respectively. For the nine months ended September 30, 2017 and October 1, 2016, we recorded an income tax provision of approximately $0.2 million and $7.4 million, respectively. The income tax benefit for the three months ended September 30, 2017 and the provision for the nine months ended September 30, 2017 represent tax at the federal, state, and foreign statutory tax rates adjusted for withholding taxes, changes in uncertain tax positions, changes in the U.S. valuation allowance, as well as other non-deductible items in the United States and foreign jurisdictions. The difference between the U.S. federal statutory tax rate of 35% and our effective tax rate for the three months ended September 30, 2017, as well as the difference between the U.S. federal statutory tax rate of 35% and our negative effective tax rate for the nine months ended September 30, 2017, results from valuation allowance increase that offsets the otherwise expected tax benefit from the pretax loss in the United States, zero tax rate in Bermuda which results in no tax benefit for the pretax loss in Bermuda, foreign rate differential, and discrete benefit from the release of uncertain tax positions. Through September 30, 2017, we evaluated the existing valuation allowance position in the United States and concluded that we should continue to maintain a valuation allowance against our federal and state deferred tax assets. We will continue to evaluate both positive and negative evidence in future periods to determine if we should recognize more deferred tax assets. We don't have a valuation allowance in any foreign jurisdictions as it has been concluded it is more-likely-than-not that we will realize the net deferred tax assets in future periods. We are subject to federal and state income tax as well as income tax in the various foreign jurisdictions in which we operate. Additionally, the years that remain subject to examination are 2014 for federal income taxes, 2013 for state income taxes, and 2010 for foreign income taxes, including years ending thereafter. However, to the extent allowed by law, the tax authorities may have the right to examine prior periods where net operating losses or tax credits were generated and carried forward, and make adjustments up to the amount of the net operating losses or credit carryforward amount. Our income tax return for China is currently under examination for 2016. We are not under examination in any other jurisdiction. We believe that it is reasonably possible that $1.4 million of unrecognized tax benefits and $0.1 million of associated interest and penalties could be recognized during the next twelve months. The $1.5 million potential change would represent a decrease in unrecognized tax benefits, comprised of items related to tax filings for years that will no longer be subject to examination under expiring statutes of limitations. At December 31, 2016, we had U.S. federal net operating loss ("NOL") carryforwards (pretax) of approximately $367.0 million that expire at various dates between 2025 and 2036. We had state NOL carryforwards (pretax) of approximately $193.3 million that expire at various dates from 2017 through 2036. We also had federal and state credit carryforwards of $49.2 million and $56.7 million, respectively. Of the total $105.9 million credit carryforwards, $55.5 million do not expire. The remaining credits expire at various dates from 2017 through 2036. Our liability for uncertain tax positions (including penalties and interest) was $27.1 million and $29.6 million at September 30, 2017 and December 31, 2016, respectively, and is recorded as a component of Other long-term liabilities on our Consolidated Balance Sheets. The remainder of our uncertain tax position exposure of $24.2 million is netted against deferred tax assets. We are not currently paying U.S. federal income taxes and do not expect to pay such taxes until we fully utilize our tax NOL and credit carryforwards. We expect to pay a nominal amount of state income tax. We are paying foreign income and withholding taxes, which are reflected in income tax expense in our Consolidated Statements of Operations and are primarily related to the cost of operating offshore activities and subsidiaries. We accrue interest and penalties related to uncertain tax positions in income tax expense.

Income Taxes

For the three months ended September 30, 2017 and October 1, 2016, we recorded an income tax benefit of approximately $0.3 million and a provision of approximately $1.0 million, respectively. For the nine months ended September 30, 2017 and October 1, 2016, we recorded an income tax provision of approximately $0.2 million and $7.4 million, respectively. The income tax benefit for the three months ended September 30, 2017 and the provision for the nine months ended September 30, 2017 represent tax at the federal, state, and foreign statutory tax rates adjusted for withholding taxes, changes in uncertain tax positions, changes in the U.S. valuation allowance, as well as other non-deductible items in the United States and foreign jurisdictions. The difference between the U.S. federal statutory tax rate of 35% and our effective tax rate for the three months ended September 30, 2017, as well as the difference between the U.S. federal statutory tax rate of 35% and our negative effective tax rate for the nine months ended September 30, 2017, results from valuation allowance increase that offsets the otherwise expected tax benefit from the pretax loss in the United States, zero tax rate in Bermuda which results in no tax benefit for the pretax loss in Bermuda, foreign rate differential, and discrete benefit from the release of uncertain tax positions.

Through September 30, 2017, we evaluated the existing valuation allowance position in the United States and concluded that we should continue to maintain a valuation allowance against our federal and state deferred tax assets. We will continue to evaluate both positive and negative evidence in future periods to determine if we should recognize more deferred tax assets. We don't have a valuation allowance in any foreign jurisdictions as it has been concluded it is more-likely-than-not that we will realize the net deferred tax assets in future periods.

We are subject to federal and state income tax as well as income tax in the various foreign jurisdictions in which we operate. Additionally, the years that remain subject to examination are 2014 for federal income taxes, 2013 for state income taxes, and 2010 for foreign income taxes, including years ending thereafter. However, to the extent allowed by law, the tax authorities may have the right to examine prior periods where net operating losses or tax credits were generated and carried forward, and make adjustments up to the amount of the net operating losses or credit carryforward amount.

Our income tax return for China is currently under examination for 2016. We are not under examination in any other jurisdiction.

We believe that it is reasonably possible that $1.4 million of unrecognized tax benefits and $0.1 million of associated interest and penalties could be recognized during the next twelve months. The $1.5 million potential change would represent a decrease in unrecognized tax benefits, comprised of items related to tax filings for years that will no longer be subject to examination under expiring statutes of limitations.

At December 31, 2016, we had U.S. federal net operating loss ("NOL") carryforwards (pretax) of approximately $367.0 million that expire at various dates between 2025 and 2036. We had state NOL carryforwards (pretax) of approximately $193.3 million that expire at various dates from 2017 through 2036. We also had federal and state credit carryforwards of $49.2 million and $56.7 million, respectively. Of the total $105.9 million credit carryforwards, $55.5 million do not expire. The remaining credits expire at various dates from 2017 through 2036.

Our liability for uncertain tax positions (including penalties and interest) was $27.1 million and $29.6 million at September 30, 2017 and December 31, 2016, respectively, and is recorded as a component of Other long-term liabilities on our Consolidated Balance Sheets. The remainder of our uncertain tax position exposure of $24.2 million is netted against deferred tax assets.

We are not currently paying U.S. federal income taxes and do not expect to pay such taxes until we fully utilize our tax NOL and credit carryforwards. We expect to pay a nominal amount of state income tax. We are paying foreign income and withholding taxes, which are reflected in income tax expense in our Consolidated Statements of Operations and are primarily related to the cost of operating offshore activities and subsidiaries. We accrue interest and penalties related to uncertain tax positions in income tax expense.