XML 38 R52.htm IDEA: XBRL DOCUMENT

Long-Term Deferred Expenses - Summary of Long-Term Deferred Expenses (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Deferred Expenses Non Current [Line Items]
Deferred costs	$ 646us-gaap_DeferredCosts	$ 917us-gaap_DeferredCosts
Rent Of Advertising Space [Member]
Deferred Expenses Non Current [Line Items]
Weighted average amortization period	5 years
Deferred costs	384	484
Concession Approval Fees [Member]
Deferred Expenses Non Current [Line Items]
Weighted average amortization period	3 years
Deferred costs	$ 262	$ 433