| Component: (Network and Table) | |
|---|---|
| Network | 2404402 - Disclosure - Accounts Receivable - Schedule of Accounts Receivable (Details) (http://www.churchilldowns.com/role/AccountsReceivableScheduleOfAccountsReceivableDetails) |
| Table | Schedule of Accounts, Notes, Loans and Financing Receivable [Table] |
| Reporting Entity [Axis] | 0000020212 (http://www.sec.gov/CIK) |
| Accounts, Notes, Loans and Financing Receivable [Line Items] | Period [Axis] | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
2016-12-31 | 2015-12-31 | |||||||||
| Products and Services [Axis] | Products and Services [Axis] | |||||||||
| Trade receivables | Derby-related receivables | Simulcast and mobile and online wagering receivables | Other receivables | Products and Services [Domain] | Trade receivables | Derby-related receivables | Simulcast and mobile and online wagering receivables | Other receivables | Products and Services [Domain] | |
Accounts Receivable, Net, Current [Abstract] | ||||||||||
Accounts receivable, gross | ||||||||||
Allowance for doubtful accounts | (3,500,000) | (3,800,000) | ||||||||
Accounts receivable, net | 81,400,000 | 67,800,000 | ||||||||