Note 9 - Income Taxes	6 Months Ended
Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes For additional information on our income taxes, including our accounting policies and the TCJA, see Notes 1 and 10 of Notes to Consolidated Financial Statements in our 2017 Form 10-K. Because the TCJA was passed late in the fourth quarter of 2017 and ongoing guidance and accounting interpretation is expected throughout 2018, as of December 31, 2017, we made provisional estimates for the effects of the TCJA in accordance with SAB 118. These provisional estimates primarily related to NOLs, loss reserves, tax depreciation, share-based compensation and state taxes. We expect to complete our analysis of all deferred tax balances by December 2018. As of June 30, 2018, we have not recorded any measurement period adjustments in accordance with SAB 118 to change our provisional amounts that were recorded as of December 31, 2017. As of June 30, 2018, for federal income tax purposes, we have approximately $2.3 million of federal NOL carryforwards. These carryforwards were obtained as part of the acquisition of EnTitle Direct and, as such, their annual utilization amount is limited under IRC Section 382. However, we still expect to fully utilize these NOLs prior to their expiration in tax year 2037. We also have approximately $47.1 million of AMT credit carryforwards, which are expected to be utilized or refunded, because any AMT credits that are not fully utilized as a credit against our existing tax liabilities may be claimed as a refundable credit. Some portion of the refundable credit may be subject to sequestration under the provisions of the Balanced Budget and Emergency Deficit Reduction Act of 1985. However, we do not expect the amount potentially subject to sequestration to be material. We are required to establish a valuation allowance against our deferred tax assets when it is more likely than not that all or some portion of our deferred tax assets will not be realized. At each balance sheet date, we assess our need for a valuation allowance and our assessment is based on all available evidence, both positive and negative. This requires management to exercise judgment and make assumptions regarding whether our deferred tax assets will be realized in future periods. In making this assessment as of June 30, 2018, we determined that certain of our subsidiaries within Radian may continue to generate taxable losses on a separate company basis in the near term and may not be able to fully utilize certain of their state and local NOLs on their state and local tax returns. As of June 30, 2018, our valuation allowance is $57.1 million, which relates primarily to these separate company NOLs and other state tax timing adjustments. In July 2018, we finalized a settlement with the IRS related to adjustments we had been contesting that resulted from the examination by the IRS of our 2000 through 2007 consolidated federal income tax returns. The IRS was opposing the recognition of certain tax losses and deductions that were generated through our investment in a portfolio of non-economic REMIC residual interests and proposed denying the associated tax benefits of these items. We appealed these proposed adjustments to the Internal Revenue Service Office of Appeals and made “qualified deposits” with the U.S. Treasury of $85 million in June 2008 relating to the 2000 through 2004 tax years and $4 million in May 2010 relating to the 2005 through 2007 tax years, in order to avoid the accrual of incremental above-market-rate interest with respect to the proposed adjustments. We attempted to reach a compromised settlement with the Internal Revenue Service Office of Appeals, but in September 2014 we received Notices of Deficiency covering the 2000 through 2007 tax years that asserted unpaid taxes and penalties of $157 million. The Notices of Deficiency also reflected additional amounts due of $105 million, which were primarily associated with the disallowance of the previously filed carryback of our 2008 NOL to the 2006 and 2007 tax years. See Footnote 10 of Notes to Consolidated Financial Statements in our 2017 Form 10-K. In October 2017, the parties informed the U.S. Tax Court that they believed they had reached agreement in principle on all issues in the dispute. As required by law, this agreement was reported to the JCT for review, and in April 2018, we were notified that the JCT had no objection to the terms of the agreement and that the IRS was working towards finalizing the settlement decision documents. In July 2018, the parties submitted final decision documents covering all years at issue (2000-2007) and on July 26, 2018 the Tax Court approved the settlement. This settlement with the IRS resolves the issues and concludes all disputes relating to the IRS Matter. In the three-month period ended June 30, 2018, we recorded tax benefits of $73.6 million, which includes both the impact of the settlement with the IRS as well as the reversal of certain previously accrued state and local tax liabilities. Under the terms of the settlement, we will submit to the IRS approximately $31 million of our $89 million “qualified deposits” with the U.S. Treasury and the remaining balance will be returned to us. Due to the resolution of our long-standing IRS Matter, in the second quarter of 2018 we recognized a reduction in our gross unrecognized tax benefits. This reduction, which excludes deferred uncertain tax positions as well as interest and penalties, was approximately $88.6 million, and will be reflected in our annual reconciliation of uncertain tax positions. This amount includes the reversal of certain state and local unrecognized tax benefits relating to the IRS dispute.

Income Taxes

For additional information on our income taxes, including our accounting policies and the TCJA, see Notes 1 and 10 of Notes to Consolidated Financial Statements in our 2017 Form 10-K.

Because the TCJA was passed late in the fourth quarter of 2017 and ongoing guidance and accounting interpretation is expected throughout 2018, as of December 31, 2017, we made provisional estimates for the effects of the TCJA in accordance with SAB 118. These provisional estimates primarily related to NOLs, loss reserves, tax depreciation, share-based compensation and state taxes. We expect to complete our analysis of all deferred tax balances by December 2018. As of June 30, 2018, we have not recorded any measurement period adjustments in accordance with SAB 118 to change our provisional amounts that were recorded as of December 31, 2017.

As of June 30, 2018, for federal income tax purposes, we have approximately $2.3 million of federal NOL carryforwards. These carryforwards were obtained as part of the acquisition of EnTitle Direct and, as such, their annual utilization amount is limited under IRC Section 382. However, we still expect to fully utilize these NOLs prior to their expiration in tax year 2037. We also have approximately $47.1 million of AMT credit carryforwards, which are expected to be utilized or refunded, because any AMT credits that are not fully utilized as a credit against our existing tax liabilities may be claimed as a refundable credit. Some portion of the refundable credit may be subject to sequestration under the provisions of the Balanced Budget and Emergency Deficit Reduction Act of 1985. However, we do not expect the amount potentially subject to sequestration to be material.

We are required to establish a valuation allowance against our deferred tax assets when it is more likely than not that all or some portion of our deferred tax assets will not be realized. At each balance sheet date, we assess our need for a valuation allowance and our assessment is based on all available evidence, both positive and negative. This requires management to exercise judgment and make assumptions regarding whether our deferred tax assets will be realized in future periods. In making this assessment as of June 30, 2018, we determined that certain of our subsidiaries within Radian may continue to generate taxable losses on a separate company basis in the near term and may not be able to fully utilize certain of their state and local NOLs on their state and local tax returns. As of June 30, 2018, our valuation allowance is $57.1 million, which relates primarily to these separate company NOLs and other state tax timing adjustments.

In July 2018, we finalized a settlement with the IRS related to adjustments we had been contesting that resulted from the examination by the IRS of our 2000 through 2007 consolidated federal income tax returns. The IRS was opposing the recognition of certain tax losses and deductions that were generated through our investment in a portfolio of non-economic REMIC residual interests and proposed denying the associated tax benefits of these items. We appealed these proposed adjustments to the Internal Revenue Service Office of Appeals and made “qualified deposits” with the U.S. Treasury of $85 million in June 2008 relating to the 2000 through 2004 tax years and $4 million in May 2010 relating to the 2005 through 2007 tax years, in order to avoid the accrual of incremental above-market-rate interest with respect to the proposed adjustments.

We attempted to reach a compromised settlement with the Internal Revenue Service Office of Appeals, but in September 2014 we received Notices of Deficiency covering the 2000 through 2007 tax years that asserted unpaid taxes and penalties of $157 million. The Notices of Deficiency also reflected additional amounts due of $105 million, which were primarily associated with the disallowance of the previously filed carryback of our 2008 NOL to the 2006 and 2007 tax years. See Footnote 10 of Notes to Consolidated Financial Statements in our 2017 Form 10-K.

In October 2017, the parties informed the U.S. Tax Court that they believed they had reached agreement in principle on all issues in the dispute. As required by law, this agreement was reported to the JCT for review, and in April 2018, we were notified that the JCT had no objection to the terms of the agreement and that the IRS was working towards finalizing the settlement decision documents.

In July 2018, the parties submitted final decision documents covering all years at issue (2000-2007) and on July 26, 2018 the Tax Court approved the settlement. This settlement with the IRS resolves the issues and concludes all disputes relating to the IRS Matter. In the three-month period ended June 30, 2018, we recorded tax benefits of $73.6 million, which includes both the impact of the settlement with the IRS as well as the reversal of certain previously accrued state and local tax liabilities. Under the terms of the settlement, we will submit to the IRS approximately $31 million of our $89 million “qualified deposits” with the U.S. Treasury and the remaining balance will be returned to us.

Due to the resolution of our long-standing IRS Matter, in the second quarter of 2018 we recognized a reduction in our gross unrecognized tax benefits. This reduction, which excludes deferred uncertain tax positions as well as interest and penalties, was approximately $88.6 million, and will be reflected in our annual reconciliation of uncertain tax positions. This amount includes the reversal of certain state and local unrecognized tax benefits relating to the IRS dispute.