Income Taxes	6 Months Ended
Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	NOTE 15. INCOME TAXES As a real estate investment trust (REIT), we generally are not subject to federal and state corporate income taxes on income of the REIT that we distribute to our shareholders. We conduct certain activities through our taxable REIT subsidiaries (TRS), which are subject to corporate level federal and state income taxes. These taxable activities are principally comprised of our wood products manufacturing operations and certain real estate investments. Therefore, income tax expense or benefit is primarily due to income or loss of the TRS, as well as permanent book versus tax differences. Deltic’s REIT qualifying activities were also not subject to federal and state corporate income taxes commencing on the date of the merger. Deltic’s wood products manufacturing operations and real estate activities, which are conducted through TRS subsidiaries, are subject to corporate level federal and state income taxes. On December 22, 2017, H.R. 1, commonly known as the Tax Cuts and Jobs Act (the Tax Act), was enacted. The Tax Act contained significant changes to corporate taxation, including the reduction of the corporate tax rate from 35 percent to 21 percent, effective January 1, 2018. The primary impact of the Tax Act provisions in 2018 was a reduction in our TRS’s effective tax, resulting in $4.4 million and $6.5 million in lower taxes during the three and six months ended June 30, 2018, respectively.

NOTE 15. INCOME TAXES

As a real estate investment trust (REIT), we generally are not subject to federal and state corporate income taxes on income of the REIT that we distribute to our shareholders. We conduct certain activities through our taxable REIT subsidiaries (TRS), which are subject to corporate level federal and state income taxes. These taxable activities are principally comprised of our wood products manufacturing operations and certain real estate investments. Therefore, income tax expense or benefit is primarily due to income or loss of the TRS, as well as permanent book versus tax differences.

Deltic’s REIT qualifying activities were also not subject to federal and state corporate income taxes commencing on the date of the merger. Deltic’s wood products manufacturing operations and real estate activities, which are conducted through TRS subsidiaries, are subject to corporate level federal and state income taxes.

On December 22, 2017, H.R. 1, commonly known as the Tax Cuts and Jobs Act (the Tax Act), was enacted. The Tax Act contained significant changes to corporate taxation, including the reduction of the corporate tax rate from 35 percent to 21 percent, effective January 1, 2018. The primary impact of the Tax Act provisions in 2018 was a reduction in our TRS’s effective tax, resulting in $4.4 million and $6.5 million in lower taxes during the three and six months ended June 30, 2018, respectively.