Stock-Based Compensation - Stock Option Activity (Details) - Stock options - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Jun. 30, 2020
Options Outstanding, Number of Shares
Balance at the beginning of the period			1,255
Options granted			0	0
Options exercised			(234)
Balance at the end of the period	1,021		1,021		1,255
Options Outstanding, Weighted average exercise price
Balance at the beginning of the period (in dollars per share)			$ 12.43
Options exercised (in dollars per share)			8.27
Balance at the end of the period (in dollars per share)	$ 13.38		$ 13.38		$ 12.43
Options Additional Disclosures
Weighted average remaining contractual term			2 years 6 months 14 days		2 years 11 months 15 days
Aggregate intrinsic value at the beginning of the period			$ 167,406
Weighted average remaining contractual term of options vested and exercisable at the end of the period (years)			2 years 6 months 14 days
Aggregate intrinsic value at the end of the period	$ 196,538		$ 196,538		$ 167,406
Options vested and exercisable at the end of the period (in shares)	1,021		1,021
Options vested and exercisable at the end of the period, weighted average exercise price (in dollars per share)	$ 13.38		$ 13.38
Options vested and exercisable intrinsic value	$ 196,538		$ 196,538
Total intrinsic value of options exercised	$ 25,869	$ 1,409	$ 37,277	$ 2,080