Income Taxes (Tables)

12 Months Ended

Sep. 30, 2019

Income Taxes

Components of Income Tax Expense (Benefit)

		Year Ended September 30,
		2019		2018		2017
Current:
	Federal	$	40,173	$	39,979	$	17,872
	State		2,402		3,697		1,379
	Foreign		34,660		25,968		15,118
Deferred:
	Federal		(2,015)		(10,519)		16,907
	State		(2,948)		(3,784)		(2,561)
	Foreign		(11,262)		(16,141)		3,525
		$	61,010	$	39,200	$	52,240

Earnings Before Income Taxes by Geographical Area

	Year Ended September 30,
	2019		2018		2017
United States	$	211,267	$	181,671	$	192,220
Other countries		109,345		37,907		60,527
	$	320,612	$	219,578	$	252,747

Schedule of Deferred Tax Assets and Liabilities

		At September 30,
		2019		2018
Deferred tax assets:
	Defined benefit plans, other postretirement	$	6,535	$	6,844
	Foreign net operating loss carryforwards		6,836		6,071
	Inventory		51,740		23,549
	Stock-based and other compensation		45,839		39,903
	Defined benefit plans, pension		11,399		2,187
	Deferred revenue net of unbilled receivables		32,310		60,177
	Other reserves		11,571		10,154
	Tax credits and incentives		13,580		12,512
	Other		5,611		9,887
	Valuation allowance		(3,638)		(4,522)
	Total deferred tax assets, net of valuation allowance		181,783		166,762
Deferred tax liabilities:
	Goodwill and intangibles - net		(212,926)		(231,223)
	Property, plant and equipment		(97,469)		(85,459)
	Other		(4,589)		(4,425)
	Total deferred tax liabilities		(314,984)		(321,107)
Net deferred tax liabilities		$	(133,201)	$	(154,345)

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

	Year Ending September 30,
	2019		2018		2017
Percent of pretax earnings
Statutory tax rate	21.0	%	24.5	%	35.0	%
State income taxes, net of federal tax benefit	(0.1)		(0.5)		(0.3)
Taxes on international activities	0.2		(1.8)		(7.6)
Research credit	(3.3)		(4.8)		(3.2)
Net excess income tax benefit from stock-based compensation	(3.5)		(1.4)		(1.4)
Domestic production activities deduction	-		(1.6)		(1.5)
Adjustments of prior period tax items	0.9		(5.0)		(0.9)
Effect of U.S. federal corporate rate reduction on net beginning U.S. deferred tax liability	-		(5.0)		-
Transition Tax	3.3		6.2		-
Increased deferred tax liability associated with anticipated repatriation taxes	-		3.7		-
Effect of U.S. federal corporate rate reduction on net current year U.S. deferred tax activity	-		2.0		-
Other items, net	0.5		1.6		0.6
Effective tax rate	19.0	%	17.9	%	20.7	%

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

	Year Ending September 30,
	2019		2018		2017
Beginning balance	$	8,364	$	20,132	$	23,526
Additions to current year tax positions		1,930		2,675		2,560
Reductions to prior year tax positions		-		(14,458)		(5,753)
Additions to prior year tax positions		11		15		3,501
Lapse of applicable statute of limitations		-		-		(3,702)
Ending balance	$	10,305	$	8,364	$	20,132