Debt Obligations - Long-term Debt Obligations (Parenthetical) (Detail)	Mar. 31, 2016	Dec. 31, 2015
Minimum [Member] | Other Long Term Debt [Member]
Debt Instrument [Line Items]
Capital leases and Other long-term debt interest rates	3.40%	3.40%
Minimum [Member] | Capital Leases [Member]
Debt Instrument [Line Items]
Capital leases and Other long-term debt interest rates	2.50%	2.50%
Maximum [Member] | Other Long Term Debt [Member]
Debt Instrument [Line Items]
Capital leases and Other long-term debt interest rates	4.30%	4.30%
Maximum [Member] | Capital Leases [Member]
Debt Instrument [Line Items]
Capital leases and Other long-term debt interest rates	6.20%	6.20%