Long-Term Debt and Other Borrowing Arrangements - Carrying Values of Long-Term Debt and Other Borrowing Arrangements (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Long term debt		$ 445,984
Senior subordinated notes	1,118,261	705,221
Total debt and other borrowing arrangements	1,367,036	1,151,205
Less current maturities of Term Loan	(2,500)	(15,678)
Long-term debt	1,364,536	1,135,527
Variable rate term loans due 2017 [Member]
Debt Instrument [Line Items]
Long term debt		247,714
Revolving credit agreement due 2016 [Member]
Debt Instrument [Line Items]
Long term debt		198,270
Revolving credit agreement due 2018 [Member]
Debt Instrument [Line Items]
Long term debt
Variable rate term loans due 2020 [Member]
Debt Instrument [Line Items]
Long term debt	248,775
5.5% Senior subordinated notes due 2022 [Member]
Debt Instrument [Line Items]
Senior subordinated notes	700,000	700,000
5.5% Senior subordinated notes due 2023 [Member]
Debt Instrument [Line Items]
Senior subordinated notes	413,040
9.25% Senior subordinated notes due 2019 [Member]
Debt Instrument [Line Items]
Senior subordinated notes	$ 5,221	$ 5,221