Segment Information (Details) $ in Thousands	3 Months Ended			6 Months Ended
	Dec. 31, 2021 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2021 USD ($) segment	Dec. 31, 2020 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments | segment				3
Revenue	$ 194,981	$ 157,526	$ 357,565	$ 352,508	$ 480,339
Operating expenses	(358,211)		(228,753)	(562,077)	(340,835)
Other expenses, net	(51)		(21)	(153)	(43)
Adjusted EBITDA	(163,281)		128,791	(209,722)	139,461
Share-based compensation expense	(1,894)		(1,336)	(4,109)	(2,259)
Non-recurring expenses	(1,602)		(362)	(2,155)	(822)
Fair value adjustments to contingent earnout obligations			(395)	0	(1,153)
Depreciation and amortization	(6,175)		(3,590)	(11,278)	(6,937)
Loss on disposal of property, equipment, and software	(5)		(79)	(355)	(162)
Interest expense, net	(10,587)		(6,782)	(19,122)	(13,543)
Income tax benefit	46,536	16,045	(26,391)	62,580	(24,994)
NET INCOME (LOSS)	(137,008)	$ (47,153)	89,856	(184,161)	89,591
Corp & Elims
Segment Reporting Information [Line Items]
Revenue	(1,901)		(852)	(5,594)	(2,243)
Operating expenses	(15,979)		(12,746)	(29,330)	(22,264)
Other expenses, net	(51)		(21)	(153)	(43)
Adjusted EBITDA	(17,931)		(13,619)	(35,077)	(24,550)
Salary expense	(11,200)		8,400	21,600	15,000
Professional fees	(4,300)		3,300	9,000	6,300
Senior
Segment Reporting Information [Line Items]
Revenue	$ 157,967		$ 315,510	$ 264,287	$ 388,709
Senior | Major Customer One | Customer Concentration Risk | Revenue from Contract with Customer Benchmark
Segment Reporting Information [Line Items]
Concentration risk, percentage	24.00%		30.00%	21.00%	27.00%
Senior | Major Customer Two | Customer Concentration Risk | Revenue from Contract with Customer Benchmark
Segment Reporting Information [Line Items]
Concentration risk, percentage	15.00%		22.00%	14.00%	20.00%
Senior | Major Customer Three | Customer Concentration Risk | Revenue from Contract with Customer Benchmark
Segment Reporting Information [Line Items]
Concentration risk, percentage			18.00%	13.00%	15.00%
Senior | Operating Segments
Segment Reporting Information [Line Items]
Revenue	$ 157,967		$ 315,510	$ 264,287	$ 388,709
Operating expenses	(306,602)		(180,955)	(445,893)	(245,252)
Other expenses, net	0		0	0	0
Adjusted EBITDA	(148,635)		134,555	(181,606)	143,457
Life
Segment Reporting Information [Line Items]
Revenue	$ 32,780		35,666	80,211	77,094
Life | Major Customer One | Customer Concentration Risk | Revenue from Contract with Customer Benchmark
Segment Reporting Information [Line Items]
Concentration risk, percentage	11.00%
Life | Operating Segments
Segment Reporting Information [Line Items]
Revenue	$ 32,780		35,666	80,211	77,094
Operating expenses	(30,930)		(29,961)	(76,058)	(62,307)
Other expenses, net	0		0	0	0
Adjusted EBITDA	1,850		5,705	4,153	14,787
Auto & Home
Segment Reporting Information [Line Items]
Revenue	6,135		7,241	13,604	16,779
Auto & Home | Operating Segments
Segment Reporting Information [Line Items]
Revenue	6,135		7,241	13,604	16,779
Operating expenses	(4,700)		(5,091)	(10,796)	(11,012)
Other expenses, net	0		0	0	0
Adjusted EBITDA	$ 1,435		$ 2,150	$ 2,808	$ 5,767