Acquisitions - Narrative (Details) - USD ($) $ in Thousands			3 Months Ended		6 Months Ended
	Jul. 12, 2019	Jun. 12, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Jun. 30, 2019
Business Acquisition [Line Items]
Cash paid					$ 0	$ 1,200
Goodwill			$ 140,025		$ 140,025		$ 78,383
Effective income tax rate (as a percent)			16.70%	13.40%	14.90%	12.30%
Sabisu Ltd. [Member]
Business Acquisition [Line Items]
Consideration transferred		$ 7,600
Cash paid		6,100
Future contingent consideration payment			$ 1,500		$ 1,500
Goodwill		4,395
Mnubo, Inc. [Member]
Business Acquisition [Line Items]
Consideration transferred	$ 78,300
Goodwill	61,742
Escrow Deposit			7,900		7,900
Developed Technology Rights | Sabisu Ltd. [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets acquired		1,906
Developed Technology Rights | Mnubo, Inc. [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	13,667
Customer Relationship | Sabisu Ltd. [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets acquired		1,144
Customer Relationship | Mnubo, Inc. [Member]
Business Acquisition [Line Items]
Finite-lived intangible assets acquired	2,991
United Kingdom, Pounds | Sabisu Ltd. [Member]
Business Acquisition [Line Items]
Consideration transferred		6,000
Cash paid		$ 4,800
Future contingent consideration payment			1,200		1,200
Canada, Dollars | Mnubo, Inc. [Member]
Business Acquisition [Line Items]
Consideration transferred	$ 102,300
Escrow Deposit			$ 10,300		$ 10,300