Revenue from Contracts with Customers Impact to Prior Period Information (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Jun. 30, 2018
Contract assets	$ 317,967		$ 0
Contract costs	21,296		0
Total revenue	114,169
Subscription and Software Revenue		$ 115,756
Gross Profit	100,942	110,049
Selling and marketing	26,812	23,571
General and administrative	16,084	13,676
Income from operations	36,990	53,313
Interest income	7,069	141
Provision for income taxes	4,307	16,877
Net income	38,066	34,755
Increase (Decrease) in Contract with Customer, Asset	30,914	0
Increase (Decrease) in Deferred Charges	$ 796	$ 0
Earnings Per Share, Basic	$ 0.54	$ 0.48
Earnings Per Share, Diluted	$ 0.53	$ 0.47
Weighted Average Number of Shares Outstanding, Basic	70,988	73,024
Weighted Average Number of Shares Outstanding, Diluted	72,015	73,609
Accounts receivable, net	$ 53,999		21,910
Contract with Customer, Asset, Net, Noncurrent	357,947		0
Current deferred revenue	23,737		286,845
Non-current deferred revenue	15,046		28,259
Deferred income taxes	159,563		0
Other non-current liabilities	16,833		18,492
Retained earnings	1,103,573		305,208
Increase (Decrease) in Accounts Receivable	(12,529)	$ 504
Deferred revenue	11,403	(40,037)
Net Cash Provided by (Used in) Operating Activities, Continuing Operations	5,570	12,360
License [Member]
Total revenue	63,755	0
Maintenance [Member]
Total revenue	43,039	0
Services and other
Total revenue	$ 7,375	7,025
Accounting Standards Update 2014-09 [Member]
Contract assets			304,378
Contract costs			20,500
Total revenue		126,487
Subscription and Software Revenue		0
Gross Profit		113,755
Selling and marketing		23,516
General and administrative		15,037
Income from operations		55,713
Interest income		6,306
Provision for income taxes		19,677
Net income		40,521
Increase (Decrease) in Contract with Customer, Asset		(35,791)
Increase (Decrease) in Deferred Charges		$ (185)
Earnings Per Share, Basic		$ 0.55
Earnings Per Share, Diluted		$ 0.55
Weighted Average Number of Shares Outstanding, Basic		73,024
Weighted Average Number of Shares Outstanding, Diluted		73,609
Accounts receivable, net			41,810
Contract with Customer, Asset, Net, Noncurrent			340,622
Current deferred revenue			15,150
Non-current deferred revenue			12,354
Deferred income taxes			214,125
Other non-current liabilities			17,068
Retained earnings			1,065,507
Increase (Decrease) in Accounts Receivable		$ (9,093)
Deferred revenue		(1,238)
Net Cash Provided by (Used in) Operating Activities, Continuing Operations		12,360
Accounting Standards Update 2014-09 [Member] | License [Member]
Total revenue		78,890
Accounting Standards Update 2014-09 [Member] | Maintenance [Member]
Total revenue		40,264
Accounting Standards Update 2014-09 [Member] | Services and other
Total revenue		7,333
Difference between Revenue Guidance in Effect before and after Topic 606 [Member]
Contract assets			304,378
Contract costs			20,500
Subscription and Software Revenue		(115,756)
Gross Profit		3,706
Selling and marketing		(55)
General and administrative		1,361
Income from operations		2,400
Interest income		6,165
Provision for income taxes		2,800
Net income		5,766
Increase (Decrease) in Contract with Customer, Asset		(35,791)
Increase (Decrease) in Deferred Charges		(185)
Accounts receivable, net			19,900
Contract with Customer, Asset, Net, Noncurrent			340,622
Current deferred revenue			(271,695)
Non-current deferred revenue			(15,905)
Deferred income taxes			214,125
Other non-current liabilities			(1,424)
Retained earnings			$ 760,299
Increase (Decrease) in Accounts Receivable		8,589
Deferred revenue		38,799
Net Cash Provided by (Used in) Operating Activities, Continuing Operations		0
Difference between Revenue Guidance in Effect before and after Topic 606 [Member] | License [Member]
Total revenue		78,890
Difference between Revenue Guidance in Effect before and after Topic 606 [Member] | Maintenance [Member]
Total revenue		40,264
Difference between Revenue Guidance in Effect before and after Topic 606 [Member] | Services and other
Total revenue		$ 308