Income Taxes

During the year ended December 31, 2015, the Company restructured its legal entities such that there will be only one U.S. tax filing group filing a single U.S. consolidated federal income tax return beginning in 2016. Prior to 2016, the Company’s corporate organizational structure required the filing of two separate consolidated U.S. Federal income tax returns. Taxable income of one group could not be offset by tax attributes, including net operating losses, of the other group.

A reconciliation of the U.S. federal statutory tax rate to the Company’s effective income tax rate is as follows:



	Three months ended September 30,				Nine months ended September 30,
	2016		2015		2016		2015
U.S. federal statutory tax rate	(35.0	)%	35.0	%	(35.0	)%	(35.0	)%
State income taxes, net of federal benefit	3.8		5.7		(0.7	)	1.8
Non-U.S. income taxed at different rates	(12.6	)	(29.1	)	(1.2	)	(4.2	)
Non-deductible expenses	—		0.2		—		2.4
Domestic production activities deduction	—		3.6		—		—
Other	(0.8	)	1.4		0.9		0.1
Effective income tax rate	(44.6	)%	16.8	%	(36.0	)%	(34.9	)%

Fluctuations in effective tax rates have historically been impacted by permanent tax differences with no associated income tax impact, changes in state apportionment factors, including the effect on state deferred tax assets and liabilities, and benefits of non-U.S. income taxed at lower rates. Changes in the effective tax rate during the three months ended September 30, 2015, included the Company no longer qualifying for the domestic production activities deduction due to its pretax loss position.

Deferred taxes are presented in the balance sheets as follows (in thousands):



	September 30, 2016			December 31, 2015
Current deferred tax assets	$	2,352		$	2,649
Non-current deferred tax assets	—			17,229
Non-current deferred tax liabilities	(1,205		)	(23,823		)
Net deferred tax assets (liabilities)	$	1,147		$	(3,945	)