Financial Instruments - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2014 Interest rate swap agreements	Mar. 31, 2014 Foreign Currency Exchange Rate Risk	Mar. 31, 2014 Accrued liabilities Interest rate swap agreements	Mar. 31, 2014 Other liabilities Interest rate swap agreements	Mar. 31, 2014 Carrying (Reported) Amount, Fair Value Disclosure [Member]	Mar. 31, 2014 Carrying (Reported) Amount, Fair Value Disclosure [Member] Interest rate swap agreements	Mar. 31, 2014 Estimate of Fair Value, Fair Value Disclosure [Member]	Mar. 31, 2014 Estimate of Fair Value, Fair Value Disclosure [Member] Interest rate swap agreements	Mar. 31, 2014 Bank Debt Carrying (Reported) Amount, Fair Value Disclosure [Member]	Mar. 31, 2014 Bank Debt Estimate of Fair Value, Fair Value Disclosure [Member]	Mar. 31, 2014 5% Senior Notes Carrying (Reported) Amount, Fair Value Disclosure [Member]	Mar. 31, 2014 5% Senior Notes Estimate of Fair Value, Fair Value Disclosure [Member]	Mar. 31, 2014 Senior Notes Five and One Half Percent [Member] Carrying (Reported) Amount, Fair Value Disclosure [Member]	Mar. 31, 2014 Senior Notes Five and One Half Percent [Member] Estimate of Fair Value, Fair Value Disclosure [Member]	Mar. 23, 2012 Five Percent Senior Notes due 2020 [Member] Senior Notes [Member]	Sep. 09, 2013 Five and One Half Percent Senior Notes due 2022 [Member] Senior Notes [Member]
Derivative [Line Items]
Cash and cash equivalents						$ 83,222,000		$ 83,222,000
Long-Term Debt										1,059,809,000	1,059,809,000	500,000,000	507,500,000	300,000,000	309,939,000
Senior note interest rate																5.00%	5.50%
Derivative liabilities		5,500,000		5,300,000	200,000		5,492,000		5,492,000
Amount of losses, net of income taxes, reclassified to earnings from change in fair value of derivatives component of accumulated other comprehensive loss	900,000
Estimated reclassification of losses, net of income taxes, from the change in fair value of derivatives component of accumulated other comprehensive loss to earnings during the next twelve months	3,000,000
Aggregate notional principal amount of outstanding interest rate swap agreements		295,200,000
Net payments under derivative swap agreements		1,600,000
Foreign currency (losses) gains of net investment hedges included in accumulated other comprehensive (loss) income			$ (500,000)