Income Taxes (Tables)

12 Months Ended

Sep. 30, 2017

Income Taxes

Components of Income Tax Expense (Benefit)

		Year Ended September 30,
		2017		2016		2015
Current:
	Federal	$	17,872	$	81,127	$	23,923
	State		1,379		6,067		3,108
	Foreign		15,118		9,689		18,343
Deferred:
	Federal		16,907		(40,801)		19,236
	State		(2,561)		(9,054)		751
	Foreign		3,525		(1,380)		(5,864)
		$	52,240	$	45,648	$	59,497

Earnings Before Income Taxes by Geographical Area

	Year Ended September 30,
	2017		2016		2015
United States	$	192,220	$	175,146	$	172,315
Other countries		60,527		51,340		68,634
	$	252,747	$	226,486	$	240,949

Composition of Deferred Income Taxes

		At September 30,
		2017		2016
Deferred tax assets:
	Defined benefit plans, other postretirement	$	11,947	$	13,017
	Foreign net operating loss carryforwards		4,707		5,255
	Inventory		29,444		27,332
	Deferred and stock-based compensation		37,693		34,388
	Defined benefit plans, pension		1,148		8,955
	Deferred revenue		92,426		92,213
	Other reserves		10,850		13,968
	Tax credits and incentives		9,769		7,744
	Other		7,700		7,411
	Valuation allowance		(3,714)		(3,317)
	Total deferred tax assets, net of valuation allowance		201,970		206,966
Deferred tax liabilities:
	Goodwill and intangibles - net		(103,781)		(99,030)
	Property, plant and equipment		(109,229)		(88,986)
	Other		(2,418)		(2,533)
	Total deferred tax liabilities		(215,428)		(190,549)
Net deferred tax assets (liabilities)		$	(13,458)	$	16,417

Reconciliation of U.S. Statutory Tax Rate to Effective Tax Rate

	Year Ending September 30,
Percent of pretax earnings	2017		2016		2015
Statutory tax rate	35.0	%	35.0	%	35.0	%
State income taxes, net of federal tax benefit	(0.3)		0.4		1.2
Taxes on international activities	(7.6)		(2.2)		(3.8)
Research credit	(3.2)		(3.6)		(0.8)
Retroactive extension of research credit	-		(3.2)		(2.4)
Net excess income tax benefit from stock-based compensation	(1.4)		(2.6)		-
Domestic production activities deduction	(1.5)		(2.1)		(1.6)
Adjustments of prior period tax items	(0.9)		(0.2)		(2.1)
Other items, net	0.6		(1.3)		(0.8)
Effective tax rate	20.7	%	20.2	%	24.7	%

Reconciliation of the Beginning and Ending Amounts of Gross Unrecognized Tax Benefits

	Year Ending September 30,
	2017		2016		2015
Beginning balance	$	23,526	$	21,469	$	22,687
Additions to current year tax positions		2,560		3,588		2,234
Reductions to prior year tax positions		(5,753)		(2,292)		(7,785)
Additions to prior year tax positions		3,501		761		5,124
Lapse of applicable statute of limitations		(3,702)		-		(791)
Ending balance	$	20,132	$	23,526	$	21,469