Income Taxes	3 Months Ended
Mar. 31, 2019
Income Tax Disclosure [Abstract]
Income Taxes	13. Income Taxes The Company’s effective income tax rate fluctuates from the U.S. statutory tax rate based on, among other factors, changes in pretax income in jurisdictions with varying statutory tax rates, impact of U.S. state and local taxes, and other differences related to the recognition of income and expense between U.S. GAAP and tax. The Company’s effective income tax rate for the three months ended March 31, 2019 was 18.8%, compared with (.8)% for the three months ended March 31, 2018. The lower effective income tax rate for the three months ended March 31, 2018 was primarily attributable to changes in forecasted annual pretax income in the first quarter of 2018 as compared to the forecasted annual pretax income in the first quarter of 2019. The Company also recorded a valuation allowance against the net deferred tax assets of a Canadian subsidiary of the Company due to a change in judgment as to the realizability of these assets in the first quarter of 2018. The Company continues to monitor income tax developments in the United States and other countries where the Company operates. In December 2017, the United States enacted U.S. Tax Reform, which materially impacted the consolidated financial statements by decreasing the U.S. corporate statutory tax rate, and significantly affecting future periods. The Company expects several proposed U.S. Treasury regulations under U.S. Tax Reform that were issued during 2018 to be finalized during 2019, as well as additional regulations to be proposed and finalized during 2019. The Company will incorporate into its future financial statements the impacts, if any, of these regulations and additional authoritative guidance when finalized.

Income Taxes

3 Months Ended

Mar. 31, 2019

13. Income Taxes

The Company’s effective income tax rate fluctuates from the U.S. statutory tax rate based on, among other factors, changes in pretax income in jurisdictions with varying statutory tax rates, impact of U.S. state and local taxes, and other differences related to the recognition of income and expense between U.S. GAAP and tax.

The Company’s effective income tax rate for the three months ended March 31, 2019 was 18.8%, compared with (.8)% for the three months ended March 31, 2018. The lower effective income tax rate for the three months ended March 31, 2018 was primarily attributable to changes in forecasted annual pretax income in the first quarter of 2018 as compared to the forecasted annual pretax income in the first quarter of 2019. The Company also recorded a valuation allowance against the net deferred tax assets of a Canadian subsidiary of the Company due to a change in judgment as to the realizability of these assets in the first quarter of 2018.

The Company continues to monitor income tax developments in the United States and other countries where the Company operates. In December 2017, the United States enacted U.S. Tax Reform, which materially impacted the consolidated financial statements by decreasing the U.S. corporate statutory tax rate, and significantly affecting future periods. The Company expects several proposed U.S. Treasury regulations under U.S. Tax Reform that were issued during 2018 to be finalized during 2019, as well as additional regulations to be proposed and finalized during 2019. The Company will incorporate into its future financial statements the impacts, if any, of these regulations and additional authoritative guidance when finalized.