Income Taxes (Tables)

12 Months Ended

Dec. 31, 2016

Income Tax Disclosure [Abstract]

Schedule of Income (Loss) Before Income Taxes and Adjustment for Noncontrolling Interests

Components of the Company’s income before income taxes and adjustment for noncontrolling interests are as follows:

	Year Ended December 31,
	2016		2015		2014
Domestic	$	121,301	$	117,388	$	83,577
Foreign	73,459		35,600		4,706
	$	194,760	$	152,988	$	88,283

Schedule of Income Tax Expense (Benefit)

The Company’s income tax expense consists of the following:

	Year Ended December 31,
	2016		2015			2014
Current
Federal	$	22,109	$	26,240		$	10,655
State	1,063		1,218			1,843
Foreign	22,067		16,458			21,496
Deferred
Federal	1,828		6,410			17,528
State	904		281			40
Foreign	6,350		(9,389		)	(8,752		)
	$	54,321	$	41,218		$	42,810

Schedule of Effective Income Tax Rate Reconciliation

The following schedule reconciles the U.S. statutory federal rate to the income tax provision:

	Year Ended December 31,
	2016			2015			2014
Tax at U.S. statutory rate	$	68,166		$	53,546		$	30,899
State and local taxes	2,564			3,441			2,203
Tax credits	(10,348		)	(8,139		)	(23,956		)
Changes in tax law	8,813			3,630			(128		)
Effect of foreign tax rates	(19,600		)	(6,465		)	(767		)
Nonrecurring permanent items	—			(11,300		)	—
Stock compensation (ASU 2016-09)	(5,305		)	—			—
Other change in tax reserves	116			(368		)	2,803
Valuation allowance	9,112			11,638			28,985
Other, net	803			(4,765		)	2,771
Income tax provision	$	54,321		$	41,218		$	42,810
Effective income tax rate	27.9		%	26.9		%	48.5		%

Deferred Tax Assets and Liabilities

Significant components of the Company’s deferred tax assets and liabilities as of December 31, 2016 and 2015 were as follows:

	2016			2015
Deferred tax assets:
Pension, postretirement and other benefits	$	78,194		$	75,690
Capitalized expenditures	1,001			498
Net operating loss and tax credit carryforwards	132,057			127,136
All other items	29,826			33,777
Total deferred tax assets	241,078			237,101
Deferred tax liabilities:
Property, plant and equipment	(30,310		)	(30,121		)
Intangibles	(16,210		)	(17,415		)
All other items	(7,623		)	(8,169		)
Total deferred tax liabilities	(54,143		)	(55,705		)
Valuation allowances	(149,757		)	(137,011		)
Net deferred tax assets	$	37,178		$	44,385

Reconciliation of Unrecognized Tax Benefits

A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:

	Year Ended December 31,
	2016			2015			2014
Balance at beginning of period	$	7,753		$	8,738		$	7,012
Tax positions related to the current period
Gross additions	516			818			1,210
Gross reductions	—			—			—
Tax positions related to prior years
Gross additions	31			1,639			1,902
Gross reductions	(70		)	(405		)	(1,106		)
Settlements	(379		)	(1,405		)	(280		)
Lapses on statutes of limitations	—			(1,632		)	—
Balance at end of period	$	7,851		$	7,753		$	8,738