Basis of Presentation - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended		3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended	3 Months Ended	9 Months Ended
	Dec. 31, 2012 Assets, Total [Member]	Dec. 31, 2012 Liabilities, Total [Member]	Sep. 30, 2012 Operating Costs [Member]	Sep. 30, 2012 Operating Costs [Member]	Sep. 30, 2012 Operating Expense Hotel [Member]	Sep. 30, 2012 Operating Expense Hotel [Member]	Sep. 30, 2012 Opry and Attractions Operating Expenses [Member]	Sep. 30, 2012 Opry and Attractions Operating Expenses [Member]	Sep. 30, 2012 Corporate Operating Expenses [Member]	Sep. 30, 2012 Corporate Operating Expenses [Member]	Sep. 30, 2012 Selling, General and Administrative Expenses [Member]	Sep. 30, 2012 Selling, General and Administrative Expenses [Member]	Sep. 30, 2012 Selling General and Administrative Expenses Hotel Cost [Member]	Sep. 30, 2012 Selling General and Administrative Expenses Hotel Cost [Member]	Sep. 30, 2012 Selling General and Administrative Expenses Opry and Attractions Cost [Member]	Sep. 30, 2012 Selling General and Administrative Expenses Opry and Attractions Cost [Member]	Sep. 30, 2012 Selling General and Administrative Expenses Corporate Cost [Member]	Sep. 30, 2012 Selling General and Administrative Expenses Corporate Cost [Member]
Prior period reclassification adjustment	$ 10.7	$ (10.7)	$ 134.8	$ 409.0	$ (122.4)	$ (373.0)	$ (10.3)	$ (27.9)	$ (2.1)	$ (8.1)	$ 44.5	$ 139.2	$ (31.5)	$ (98.7)	$ (3.9)	$ (11.2)	$ (9.1)	$ (29.3)