Long-Term Debt (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Debt Instrument [Line Items]
Long-term debt	$ 1,859,809	$ 1,783,649	$ 1,703,836
Less current portion	302,087	526,059	146,174
Long-term debt, noncurrent	1,557,722	1,257,590	1,557,662
Prepayment of term loan	749,682	302,571
Loss on early extinguishment of debt	1,474	2,068
5% Senior Notes
Debt Instrument [Line Items]
Long-term debt	500,000	500,000	500,000
Bank debt
Debt Instrument [Line Items]
Long-term debt	1,059,809	1,283,649	903,836
Senior Notes Five and One Half Percent [Member]
Debt Instrument [Line Items]
Long-term debt	300,000	0	300,000
Revolving Loan [Member] | Bank debt
Debt Instrument [Line Items]
Long-term debt	182,358	424,841	0
Less current portion	182,400
U S Term Loans [Member] | Bank debt
Debt Instrument [Line Items]
Long-term debt	365,000	364,000	364,000
Canadian Term Loans [Member] | Bank debt
Debt Instrument [Line Items]
Long-term debt	62,734	67,755	64,485
Euro Term Loans [Member] | Bank debt
Debt Instrument [Line Items]
Long-term debt	304,194	300,535	323,704
Other Foreign Bank Revolving And Term Loans [Member] | Bank debt
Debt Instrument [Line Items]
Long-term debt	145,523	126,518	151,647
Less current portion	119,700
Term Loan [Member]
Debt Instrument [Line Items]
Loss on early extinguishment of debt	$ 1,500