New Secured Term Loan Agreement (Detail) - New Secured Term Loan Agreement [Member]	9 Months Ended
	Sep. 30, 2016
Leverage Ratio One [Member]
New Secured Term Loan Agreement [Line Items]
Consolidated Total Leverage Ratio	> 6.00 : 1.00
Consolidated Net Leverage Ratio	≥ 5.75 : 1.00
Percentage for Margin London Interbank Offered Rate	8.75%
Leverage Ratio Two [Member]
New Secured Term Loan Agreement [Line Items]
Consolidated Total Leverage Ratio	≥ 4.75 : 1.00 ≤ 6.00 : 1.00
Consolidated Net Leverage Ratio	≥ 4.50 : 1.00 < 5.75 : 1.00
Percentage for Margin London Interbank Offered Rate	8.25%
Leverage Ratio Three [Member]
New Secured Term Loan Agreement [Line Items]
Consolidated Total Leverage Ratio	< 4.75 : 1.00
Consolidated Net Leverage Ratio	< 4.50 : 1.00
Percentage for Margin London Interbank Offered Rate	8.00%