Other Assets - Non-current (Detail) - USD ($) $ in Thousands	Mar. 31, 2015	Dec. 31, 2014
Other Noncurrent Assets [Line Items]
ABC Commitment	$ 13,108	$ 14,644
Notes Receivable	41,985	38,697
Prepaid Interest	9,146	9,265
Deposits	662	633
Other noncurrent assets	95	95
Other Assets-Non-current	$ 64,996	$ 63,334