Income Taxes	6 Months Ended
Jun. 30, 2016
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes The Company elected to early adopt an accounting standards update requiring the noncurrent classification of all deferred tax assets and liabilities, along with any related valuation allowance, effective January 1, 2016. As a result, the Company's deferred tax assets and liabilities have been classified, by jurisdiction, as a net noncurrent deferred tax asset or liability on the consolidated balance sheet. Consistent with the prospective application of this accounting standard, prior period comparative information was not adjusted. The effective income tax rate was 36.5% for the three months ended June 30, 2016. The effective tax rate for the 2016 period was above the U.S. federal statutory rate of 35.0% primarily due to state income taxes, partially offset by the domestic manufacturing deduction and income attributable to noncontrolling interests. The effective income tax rate was 31.9% for the three months ended June 30, 2015. The effective income tax rate for the 2015 period was below the U.S. federal statutory rate of 35.0% primarily due to the benefit of state tax credits, the domestic manufacturing deduction, income attributable to noncontrolling interests, the non-recognition of tax related to the bargain purchase of a controlling interest in Suzhou Huasu Plastics Co., Ltd. ("Huasu") and the foreign earnings rate differential, partially offset by state income taxes. The effective income tax rate was 35.7% for the six months ended June 30, 2016. The effective tax rate for the 2016 period was above the U.S. federal statutory rate of 35.0% primarily due to state income taxes, partially offset by the domestic manufacturing deduction, income attributable to noncontrolling interests and the foreign earnings rate differential. The effective income tax rate was 32.9% for the six months ended June 30, 2015. The effective income tax rate for the 2015 period was below the U.S. federal statutory rate of 35.0% primarily due to the benefit of state tax credits, the domestic manufacturing deduction, income attributable to noncontrolling interests, the non-recognition of tax related to the bargain purchase of a controlling interest in Huasu and the foreign earnings rate differential, partially offset by state income taxes. There were no unrecognized tax benefits for the six months ended June 30, 2016. The Company recognizes penalties and interest accrued related to unrecognized tax benefits in income tax expense. As of June 30, 2016, the Company had no accrued interest and penalties related to uncertain tax positions. The Company files income tax returns in the U.S. federal jurisdiction, various states and foreign jurisdictions. The Company is no longer subject to examinations by tax authorities before the year 2010. For the six months ended June 30, 2016, the Company is in a deferred tax asset position related to outside basis differences in its foreign subsidiaries. The Company will assess whether it will permanently reinvest its foreign subsidiaries' undistributed earnings in connection with the recent announcement of the definitive agreement under which the Company will acquire all of the issued and outstanding shares of common stock of Axiall Corporation. See Note 20 for further details regarding the pending acquisition.

Income Taxes

The Company elected to early adopt an accounting standards update requiring the noncurrent classification of all deferred tax assets and liabilities, along with any related valuation allowance, effective January 1, 2016. As a result, the Company's deferred tax assets and liabilities have been classified, by jurisdiction, as a net noncurrent deferred tax asset or liability on the consolidated balance sheet. Consistent with the prospective application of this accounting standard, prior period comparative information was not adjusted.

The effective income tax rate was 36.5% for the three months ended June 30, 2016. The effective tax rate for the 2016 period was above the U.S. federal statutory rate of 35.0% primarily due to state income taxes, partially offset by the domestic manufacturing deduction and income attributable to noncontrolling interests. The effective income tax rate was 31.9% for the three months ended June 30, 2015. The effective income tax rate for the 2015 period was below the U.S. federal statutory rate of 35.0% primarily due to the benefit of state tax credits, the domestic manufacturing deduction, income attributable to noncontrolling interests, the non-recognition of tax related to the bargain purchase of a controlling interest in Suzhou Huasu Plastics Co., Ltd. ("Huasu") and the foreign earnings rate differential, partially offset by state income taxes.

The effective income tax rate was 35.7% for the six months ended June 30, 2016. The effective tax rate for the 2016 period was above the U.S. federal statutory rate of 35.0% primarily due to state income taxes, partially offset by the domestic manufacturing deduction, income attributable to noncontrolling interests and the foreign earnings rate differential. The effective income tax rate was 32.9% for the six months ended June 30, 2015. The effective income tax rate for the 2015 period was below the U.S. federal statutory rate of 35.0% primarily due to the benefit of state tax credits, the domestic manufacturing deduction, income attributable to noncontrolling interests, the non-recognition of tax related to the bargain purchase of a controlling interest in Huasu and the foreign earnings rate differential, partially offset by state income taxes.

There were no unrecognized tax benefits for the six months ended June 30, 2016. The Company recognizes penalties and interest accrued related to unrecognized tax benefits in income tax expense. As of June 30, 2016, the Company had no accrued interest and penalties related to uncertain tax positions.

The Company files income tax returns in the U.S. federal jurisdiction, various states and foreign jurisdictions. The Company is no longer subject to examinations by tax authorities before the year 2010.

For the six months ended June 30, 2016, the Company is in a deferred tax asset position related to outside basis differences in its foreign subsidiaries. The Company will assess whether it will permanently reinvest its foreign subsidiaries' undistributed earnings in connection with the recent announcement of the definitive agreement under which the Company will acquire all of the issued and outstanding shares of common stock of Axiall Corporation. See Note 20 for further details regarding the pending acquisition.