Accounts Payable and Accrued Expenses - Accounts Payable and Accrued Expenses (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Payables And Accruals [Abstract]
Accounts payable	$ 4,900,000	$ 6,900,000
Accrued payroll and compensated absences	8,500,000	5,300,000
Accrued bonuses	1,000,000
Professional fees	500,000	400,000
Accrued interest	2,200,000	11,800,000
Deferred revenue	2,600,000	2,300,000
Accrued national representation fees	1,300,000	1,300,000
Other	10,300,000	11,200,000
Accounts Payable and Accrued Expenses	$ 31,246,000	$ 39,158,000