Business Acquisitions (Details) - USD ($) $ / shares in Units, $ in Thousands					12 Months Ended
	Oct. 05, 2018	Oct. 01, 2018	Dec. 21, 2017	Aug. 31, 2017	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
Business Acquisition [Line Items]
Goodwill					$ 666,944	$ 649,929
BOLTS Technologies, Inc. [Member]
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition	Oct. 05, 2018
Payments to Acquire Businesses, Gross	$ 15,046
Current assets	1,384
Identifiable intangible assets	2,274
Total other liabilities assumed	(1,505)
Total identifiable net assets	2,153
Acquisition goodwill expected to be tax deductible	0
Net assets acquired	15,046
Cash Acquired from Acquisition	1,365
Acquired Receivable, Fair Value	14
Acquired Receivables, Gross Contractual Amount	14
Acquired Receivables, Estimated Uncollectible	0
Business Acquisition, Transaction Costs	23
Revenue of Acquiree since Acquisition Date, Actual					126
Earnings or Loss of Acquiree since Acquisition Date, Actual					(895)
Agiletics, Inc. [Member]
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition		Oct. 01, 2018
Payments to Acquire Businesses, Gross		$ 7,649
Current assets		2,170
Identifiable intangible assets		3,090
Deferred income tax liability		872
Total other liabilities assumed		(738)
Total identifiable net assets		3,650
Acquisition goodwill expected to be tax deductible		0
Net assets acquired		7,649
Cash Acquired from Acquisition		1,349
Acquired Receivable, Fair Value		302
Acquired Receivables, Gross Contractual Amount		302
Acquired Receivables, Estimated Uncollectible		0
Business Acquisition, Transaction Costs		36
Revenue of Acquiree since Acquisition Date, Actual					926
Earnings or Loss of Acquiree since Acquisition Date, Actual					(192)
Ensenta Corporation [Member]
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition			Dec. 21, 2017
Payments to Acquire Businesses, Gross			$ 134,381
Current assets			14,125
Long-term assets			586
Identifiable intangible assets			58,806
Deferred income tax liability			21,859
Total other liabilities assumed			(8,496)
Total identifiable net assets			43,162
Acquisition goodwill expected to be tax deductible			0
Net assets acquired			134,381
Cash Acquired from Acquisition			7,274
Acquired Receivable, Fair Value			4,668
Acquired Receivables, Gross Contractual Amount			4,668
Acquired Receivables, Estimated Uncollectible			0
Business Acquisition, Transaction Costs						339
Revenue of Acquiree since Acquisition Date, Actual					35,688	15,776
Earnings or Loss of Acquiree since Acquisition Date, Actual					11,163	8,197
Earnings or Loss of Acquiree since Acquisition Date, Excluding Effects of TCJA						536
Pro Forma Revenue					1,552,691	1,483,915	$ 1,411,873
Pro Forma Net Income (Loss)					$ 271,885	$ 366,544	$ 231,696
Pro Forma Earnings Per Share, Basic					$ 3.52	$ 4.74	$ 2.98
Pro Forma Earnings Per Share, Diluted					$ 3.52	$ 4.72	$ 2.96
Vanguard Software Group [Member]
Business Acquisition [Line Items]
Business Acquisition, Effective Date of Acquisition				Aug. 31, 2017
Payments to Acquire Businesses, Gross				$ 10,744
Current assets				1,153
Long-term assets				9
Identifiable intangible assets				4,200
Total other liabilities assumed				(1,117)
Total identifiable net assets				4,245
Acquisition goodwill expected to be tax deductible				6,499
Net assets acquired				10,744
Cash Acquired from Acquisition				289
Acquired Receivable, Fair Value				847
Acquired Receivables, Gross Contractual Amount				847
Acquired Receivables, Estimated Uncollectible				0
Revenue of Acquiree since Acquisition Date, Actual					$ 3,120	$ 1,486
Earnings or Loss of Acquiree since Acquisition Date, Actual					(243)	(870)
Customer Relationships [Member] | BOLTS Technologies, Inc. [Member]
Business Acquisition [Line Items]
Identifiable Intangible Assets Acquired	$ 567
Identifiable Intangible Assets, Weighted Average Useful Life	15 years
Customer Relationships [Member] | Agiletics, Inc. [Member]
Business Acquisition [Line Items]
Identifiable Intangible Assets Acquired		$ 2,198
Identifiable Intangible Assets, Weighted Average Useful Life		15 years
Customer Relationships [Member] | Ensenta Corporation [Member]
Business Acquisition [Line Items]
Identifiable Intangible Assets Acquired			$ 37,800
Identifiable Intangible Assets, Weighted Average Useful Life			15 years
Customer Relationships [Member] | Vanguard Software Group [Member]
Business Acquisition [Line Items]
Identifiable Intangible Assets Acquired				$ 2,234
Identifiable Intangible Assets, Weighted Average Useful Life				15 years
Computer Software [Member] | BOLTS Technologies, Inc. [Member]
Business Acquisition [Line Items]
Identifiable Intangible Assets Acquired	$ 1,409
Identifiable Intangible Assets, Weighted Average Useful Life	10 years
Computer Software [Member] | Agiletics, Inc. [Member]
Business Acquisition [Line Items]
Identifiable Intangible Assets Acquired		$ 701
Identifiable Intangible Assets, Weighted Average Useful Life		10 years
Computer Software [Member] | Ensenta Corporation [Member]
Business Acquisition [Line Items]
Identifiable Intangible Assets Acquired			$ 16,505
Identifiable Intangible Assets, Weighted Average Useful Life			10 years
Computer Software [Member] | Vanguard Software Group [Member]
Business Acquisition [Line Items]
Identifiable Intangible Assets Acquired				$ 1,426
Identifiable Intangible Assets, Weighted Average Useful Life				10 years
Other Intangible Assets [Member] | BOLTS Technologies, Inc. [Member]
Business Acquisition [Line Items]
Identifiable Intangible Assets Acquired	$ 298
Identifiable Intangible Assets, Weighted Average Useful Life	10 years
Other Intangible Assets [Member] | Agiletics, Inc. [Member]
Business Acquisition [Line Items]
Identifiable Intangible Assets Acquired		$ 191
Identifiable Intangible Assets, Weighted Average Useful Life		10 years
Other Intangible Assets [Member] | Ensenta Corporation [Member]
Business Acquisition [Line Items]
Identifiable Intangible Assets Acquired			$ 4,501
Identifiable Intangible Assets, Weighted Average Useful Life			10 years
Other Intangible Assets [Member] | Vanguard Software Group [Member]
Business Acquisition [Line Items]
Identifiable Intangible Assets Acquired				$ 540
Identifiable Intangible Assets, Weighted Average Useful Life				10 years
Core Segment [Member]
Business Acquisition [Line Items]
Goodwill					199,956	195,956	$ 195,956
Core Segment [Member] | Agiletics, Inc. [Member]
Business Acquisition [Line Items]
Goodwill		$ 3,999
Complementary [Member]
Business Acquisition [Line Items]
Goodwill					141,662	128,769	122,403
Complementary [Member] | BOLTS Technologies, Inc. [Member]
Business Acquisition [Line Items]
Goodwill	$ 12,893
Complementary [Member] | Vanguard Software Group [Member]
Business Acquisition [Line Items]
Goodwill				$ 6,499
Payments [Member]
Business Acquisition [Line Items]
Goodwill					$ 325,326	$ 325,204	$ 234,106
Payments [Member] | Ensenta Corporation [Member]
Business Acquisition [Line Items]
Goodwill			$ 91,219