Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt - Redemption Price, Percentage (Detail)

v3.7.0.1
Long-Term Debt - Redemption Price, Percentage (Detail) - 6.125% Senior Subordinated Notes due 2027 [Member]
3 Months Ended
Mar. 31, 2017
Debt Instrument Redemption [Line Items]  
Redemption Price 106.125%
Beginning on March 15, 2022 [Member]  
Debt Instrument Redemption [Line Items]  
Redemption Price 103.063%
Beginning on March 15, 2023 [Member]  
Debt Instrument Redemption [Line Items]  
Redemption Price 102.042%
Beginning on March 15, 2024 [Member]  
Debt Instrument Redemption [Line Items]  
Redemption Price 101.021%
Beginning on March 15, 2025 and Thereafter [Member]  
Debt Instrument Redemption [Line Items]  
Redemption Price 100.00%