Final Allocation of Acquisition Costs, Including Professional Fees and Other Related Costs, to Assets Acquired and Liabilities Assumed (Detail) (USD $) In Thousands, unless otherwise specified	1 Months Ended
	May 31, 2010
Purchase price:
Cash, including acquisition costs	$ 245,498
Debt, including debt issuance costs, net of discount	350,500
Total consideration	595,998
Acquisition related costs:
Total acquisition related costs	24,509
Allocation of purchase price:
Current assets, including cash and cash equivalents of $19,718 and a current deferred tax asset of $16,073	71,287
Property and equipment	315,914
Trade name	79,000
Other assets and deferred charges, including definite lived intangibles of $10,700	37,702
Goodwill	272,359
Total assets acquired	776,262
Current liabilities	64,958
Deferred occupancy costs	65,521
Deferred income taxes	36,928
Other liabilities	12,857
Total liabilities assumed	180,264
Net assets acquired, before debt	595,998
Newly issued long-term debt, net of discount	350,500
Net assets acquired	245,498
General and Administrative Expense [Member]
Acquisition related costs:
Total acquisition related costs	8,918
Interest Expense
Acquisition related costs:
Total acquisition related costs	3,000
Debt Issuance Costs [Member]
Acquisition related costs:
Total acquisition related costs	$ 12,591