Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Assets, Current [Abstract]
Cash and cash equivalents	$ 44,708	$ 37,177
Restricted cash	36,074	38,241
Accounts receivable, net of allowance for doubtful accounts of $4,338 in 2013 and $1,885 in 2012	46,572	47,152
Deferred income taxes	8,927	8,227
Income taxes receivable	12,398	2,915
Other current assets	12,036	13,352
Total current assets	160,715	147,064
Property and equipment, net	585,498	542,882
Investment in and advances to unconsolidated affiliate	86,151	19,240
Goodwill	300,616	250,414
Other intangible assets, net	198,149	143,141
Other assets	21,132	11,596
Total assets	1,352,261	1,114,337
Liabilities, Current [Abstract]
Accounts payable	43,123	47,791
Bank overdraft	973	6,027
Account wagering deposit liabilities	18,679	14,487
Purses payable	18,839	19,084
Accrued expenses	67,328	65,537
Dividends payable	15,186	0
Current maturities of long-term debt	0	209,728
Deferred revenue	49,078	43,916
Total current liabilities	213,206	406,570
Long-term debt, net of current maturities	369,191	0
Other liabilities	17,753	21,030
Deferred revenue	16,706	17,794
Deferred income taxes	30,616	24,648
Total liabilities	647,472	470,042
Commitments and contingencies
Shareholders’ equity:
Preferred stock, no par value; 250 shares authorized; no shares issued	0	0
Common stock, no par value; 50,000 shares authorized; 17,948 shares issued at December 31, 2013 and17,448 shares issued at December 31, 2012	295,955	274,709
Retained earnings	408,834	369,586
Total shareholders’ equity	704,789	644,295
Total liabilities and shareholders’ equity	$ 1,352,261	$ 1,114,337