Long-Term Debt (Detail)	3 Months Ended			9 Months Ended															3 Months Ended				3 Months Ended				3 Months Ended							3 Months Ended	0 Months Ended
	Sep. 30, 2013 USD ($)	Mar. 31, 2013 USD ($)	Sep. 30, 2012 USD ($)	Sep. 30, 2013 USD ($)	Sep. 30, 2012 USD ($)	Dec. 31, 2012 USD ($)	Sep. 30, 2013 5.5% Senior Notes due 2022 [Member] USD ($)	Dec. 31, 2012 5.5% Senior Notes due 2022 [Member] USD ($)	Sep. 30, 2012 5.5% Senior Notes due 2022 [Member] USD ($)	Sep. 30, 2013 Bank debt USD ($)	Dec. 31, 2012 Bank debt USD ($)	Sep. 30, 2012 Bank debt USD ($)	Sep. 30, 2013 5% Senior Notes USD ($)	Dec. 31, 2012 5% Senior Notes USD ($)	Sep. 30, 2012 5% Senior Notes USD ($)	Sep. 30, 2013 Revolving Loan [Member] Bank debt USD ($)	Dec. 31, 2012 Revolving Loan [Member] Bank debt USD ($)	Sep. 30, 2012 Revolving Loan [Member] Bank debt USD ($)	Mar. 31, 2013 U S Term Loans [Member] USD ($)	Sep. 30, 2013 U S Term Loans [Member] Bank debt USD ($)	Dec. 31, 2012 U S Term Loans [Member] Bank debt USD ($)	Sep. 30, 2012 U S Term Loans [Member] Bank debt USD ($)	Mar. 31, 2013 Canadian Term Loans [Member] CAD	Sep. 30, 2013 Canadian Term Loans [Member] Bank debt USD ($)	Dec. 31, 2012 Canadian Term Loans [Member] Bank debt USD ($)	Sep. 30, 2012 Canadian Term Loans [Member] Bank debt USD ($)	Mar. 31, 2013 Euro Term Loans [Member] EUR (€)	Sep. 30, 2013 Euro Term Loans [Member] Bank debt USD ($)	Dec. 31, 2012 Euro Term Loans [Member] Bank debt USD ($)	Sep. 30, 2012 Euro Term Loans [Member] Bank debt USD ($)	Sep. 30, 2013 Other Foreign Bank Revolving And Term Loans [Member] Bank debt USD ($)	Dec. 31, 2012 Other Foreign Bank Revolving And Term Loans [Member] Bank debt USD ($)	Sep. 30, 2012 Other Foreign Bank Revolving And Term Loans [Member] Bank debt USD ($)	Mar. 31, 2013 Term Loan [Member] USD ($)	Sep. 09, 2013 Senior Notes [Member] 5.5% Senior Notes due 2022 [Member] USD ($)
Debt Instrument [Line Items]
Long-term debt	$ 1,799,928,000		$ 1,989,701,000	$ 1,799,928,000	$ 1,989,701,000	$ 1,671,316,000	$ 300,000,000	$ 0	$ 0	$ 999,928,000	$ 1,171,316,000	$ 1,489,701,000	$ 500,000,000	$ 500,000,000	$ 500,000,000	$ 98,395,000	$ 0	$ 320,000,000		$ 364,000,000	$ 520,000,000	$ 520,000,000		$ 66,784,000	$ 81,389,000	$ 82,571,000		$ 316,317,000	$ 443,406,000	$ 432,686,000	$ 154,432,000	$ 126,521,000	$ 134,444,000
Senior note interest rate																																			5.50%
Less current portion	225,732,000		423,274,000	225,732,000	423,274,000	255,349,000										98,400,000															127,300,000
Long-term debt, noncurrent	1,574,196,000		1,566,427,000	1,574,196,000	1,566,427,000	1,415,967,000
Prepayment of term loan				306,444,000	284,204,000														156,000,000				12,200,000				100,500,000							300,900,000
Loss on early extinguishment of debt	0	2,100,000	0	2,068,000	38,704,000
Debt Instrument, Face Amount																																			$ 300,000,000
Issuance price as a percentage of principal amount issued																																			100.00%