DEBT - Components of Long-Term Debt (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012	Apr. 07, 2010 First mortgage notes [Member]	Jun. 30, 2013 Mortgage Debt [Member] Traverse City/Kansas City mortgage loan [Member]	Dec. 31, 2012 Mortgage Debt [Member] Traverse City/Kansas City mortgage loan [Member]	Jun. 30, 2013 Mortgage Debt [Member] Pocono Mountains mortgage loan [Member]	Dec. 31, 2012 Mortgage Debt [Member] Pocono Mountains mortgage loan [Member]	Jun. 30, 2013 Mortgage Debt [Member] Concord mortgage loan [Member]	Dec. 31, 2012 Mortgage Debt [Member] Concord mortgage loan [Member]	Jun. 30, 2013 Mortgage Debt [Member] First mortgage notes [Member]	Dec. 31, 2012 Mortgage Debt [Member] First mortgage notes [Member]	Jun. 30, 2013 Other Long-Term Debt [Member] Junior subordinated debentures [Member]	Dec. 31, 2012 Other Long-Term Debt [Member] Junior subordinated debentures [Member]
Debt Instrument [Line Items]
Mortgage debt				$ 61,660	$ 62,215	$ 92,244	$ 93,114	$ 47,440	$ 49,158	$ 255,456	$ 258,293
Other Long-Term Debt												61,164	60,984
Total	517,964	523,764
Less current portion of long-term debt	(65,881)	(66,768)
Total long-term debt	452,083	456,996
Principal amount	511,728		230,000	62,914		90,984		47,285		230,000		80,545
Less current portion of long-term debt, Principal Amount	(65,881)
Total long-term debt, Principal Amount	$ 445,847