Stock-Based Compensation Plans - Schedule of Activity for Awards Made Outside of Share-Based Compensation Plans (Details) - Churchill Downs Incorporated 2016 Omnibus Stock Incentive Plan - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Number of Shares / Units
Shares outstanding, beginning of period (in shares)	815	1,038	1,316
Shares, granted (in shares)	211	204	202
Shares, performance adjustment (in shares)	68	49	94
Shares, vested (in shares)	(506)	(469)	(551)
Shares forfeited (in shares)	(12)	(7)	(23)
Shares outstanding, end of period (in shares)	576	815	1,038
Weighted Average Grant Date Fair Value
Shares outstanding, weighted average grant date fair value, beginning of period (in dollars per share)	$ 139.72	$ 55.07	$ 45.14
Shares, weighted average grant date fair value, granted (in dollars per share)	120.93	127.69	110.76
Shares, weighted average grant date fair value, adjustments (in dollars per share)	110.13	127.15	91.23
Shares, weighted average grant date fair value, vested (in dollars per share)	78.25	71.91	64.83
Shares, weighted average grant date fair value, forfeited (in dollars per share)	122.46	99.74	104.41
Shares outstanding, weighted average grant date fair value, end of period (in dollars per share)	$ 81.58	$ 139.72	$ 55.07
PSUs
Number of Shares / Units
Shares outstanding, beginning of period (in shares)	547	741	958
Shares, granted (in shares)	63	62	68
Shares, performance adjustment (in shares)	68	49	94
Shares, vested (in shares)	(343)	(305)	(368)
Shares forfeited (in shares)	0	0	(11)
Shares outstanding, end of period (in shares)	335	547	741
Weighted Average Grant Date Fair Value
Shares outstanding, weighted average grant date fair value, beginning of period (in dollars per share)	$ 99.64	$ 45.04	$ 41.50
Shares, weighted average grant date fair value, granted (in dollars per share)	115.22	134.12	110.13
Shares, weighted average grant date fair value, adjustments (in dollars per share)	110.12	127.15	91.23
Shares, weighted average grant date fair value, vested (in dollars per share)	68.11	62.10	57.66
Shares, weighted average grant date fair value, forfeited (in dollars per share)	0	0	106.90
Shares outstanding, weighted average grant date fair value, end of period (in dollars per share)	$ 60.83	$ 99.64	$ 45.04
RSAs and RSUs
Number of Shares / Units
Shares outstanding, beginning of period (in shares)	268	297	358
Shares, granted (in shares)	148	142	134
Shares, performance adjustment (in shares)	0	0	0
Shares, vested (in shares)	(163)	(164)	(183)
Shares forfeited (in shares)	(12)	(7)	(12)
Shares outstanding, end of period (in shares)	241	268	297
Weighted Average Grant Date Fair Value
Shares outstanding, weighted average grant date fair value, beginning of period (in dollars per share)	$ 69.60	$ 80.09	$ 67.51
Shares, weighted average grant date fair value, granted (in dollars per share)	123.37	124.89	111.08
Shares, weighted average grant date fair value, adjustments (in dollars per share)	0	0	0
Shares, weighted average grant date fair value, vested (in dollars per share)	99.51	90.10	79.45
Shares, weighted average grant date fair value, forfeited (in dollars per share)	122.46	99.74	102.36
Shares outstanding, weighted average grant date fair value, end of period (in dollars per share)	$ 110.48	$ 69.60	$ 80.09