Business Acquisition (Narrative) (Details) € in Thousands, $ in Thousands		3 Months Ended		9 Months Ended		12 Months Ended
	Jun. 01, 2018 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Jun. 30, 2019 USD ($)	Jun. 30, 2018 USD ($)	Sep. 30, 2018 USD ($)	Sep. 30, 2018 EUR (€)
Business Acquisition [Line Items]
Proceeds from issuance of long-term debt					$ 400,000
Borrowings on revolving lines of credit				$ 1,286,258	1,769,105
Amortization of intangible assets		$ 11,305	$ 11,360	45,470	23,861
Net sales		752,005	588,117	2,163,660	1,606,514
Earnings before income taxes		92,314	54,417	243,997	140,551
Acquisition financing related costs		3,655	1,154	$ 11,152	1,154
Business Acquisition, Acquiree - L'Orange [Member]
Business Acquisition [Line Items]
Effective Date of Acquisition				Jun. 01, 2018
Purchase agreement contract price						$ 811,000	€ 700,000
Proceeds from issuance of long-term debt						400,000
Borrowings on revolving lines of credit						$ 167,420
Amortization of intangible assets		5,558		$ 28,136
Goodwill, Acquired During Period	$ 257,447
Net sales		78,517	24,878	254,183	24,878
Earnings before income taxes		$ 11,495	$ (1,215)	$ 33,995	$ (1,215)
Defined Benefit Pension Plan [Member] | Business Acquisition, Acquiree - L'Orange [Member]
Business Acquisition [Line Items]
Pension obligation assumed in L'Orange aquisition	39,257
Current portion of pension obligation	$ 1,143