Long-Term Debt - Additional Information (Detail)	3 Months Ended		9 Months Ended					9 Months Ended			9 Months Ended			9 Months Ended			9 Months Ended
	Sep. 30, 2011 USD ($)	Sep. 30, 2010 USD ($)	Sep. 30, 2011 USD ($)	Sep. 30, 2010 USD ($)	Jul. 28, 2011 USD ($)	Dec. 31, 2010 USD ($)	Sep. 30, 2011 Bank debt Revolving loans USD ($)	Sep. 30, 2011 Revolving loans USD ($)	Jul. 28, 2011 Revolving loans U.S. USD ($)	Jul. 28, 2011 Revolving loans Canadian CAD	Sep. 30, 2011 Revolving loans Maximum	Sep. 30, 2011 Revolving loans Minimum	Sep. 30, 2011 Bank debt Revolving and term loans Other foreign USD ($)	Sep. 30, 2011 Revolving and term loans	Sep. 30, 2011 Revolving and term loans LIBOR	Sep. 30, 2011 Revolving and term loans Base Rate	Sep. 30, 2011 Term loans	Jul. 28, 2011 Term loans U.S. USD ($)	Jul. 28, 2011 Term loans Canadian CAD	Jul. 28, 2011 Term loans Euro EUR (€)	Jul. 28, 2011 Maximum USD ($)
Line of Credit Facility [Line Items]
Long-term debt, current	$ 118,155,000	$ 213,158,000	$ 118,155,000	$ 213,158,000		$ 13,949,000	$ 15,000,000						$ 103,200,000
Credit agreement					1,900,000,000				790,000,000	10,000,000								520,000,000	81,000,000	335,000,000
Additional Borrowing Capacity																					750,000,000
Long-term debt maturity date								Jul. 28, 2016									Jul. 28, 2017
Description of maturity date of line credit agreement														The final maturity date for the Revolving Loans and Term Loans will be July 7, 2016 if our 7¼ % Senior Notes have not been refinanced in full on or before July 7, 2016.
Final maturity date for the revolving and term loans if the 7 1/4 Senior Notes have not been refinanced in full on or before July 7, 2016														2016-07-07
Percentage of excess cash flow required for payment	50.00%		50.00%
Line of Credit Facility, Interest Rate Description			Under the Credit Agreement, the interest rate for U.S. term loans will be either LIBOR or the base rate under the Credit Agreement plus a margin, the interest rate for Euro term loans will be the Euribor rate under the Credit Agreement plus a margin and the interest rate for Canadian term loans will be either the Bankers’ Acceptance discount rate or the Canadian prime rate under the Credit Agreement plus a margin. Initially, for Term Loans and Revolving Loans maintained as LIBOR, Euribor or Bankers’ Acceptance loans the margin was 1.75 percent, and for Term Loans and Revolving Loans maintained as base rate or Canadian prime rate loans the margin was 0.75 percent.
Line of Credit Facility, margin															1.75%	0.75%
Commitment fee percentage per annum on the daily average unused portion of commitments											0.375%	0.25%
Commitment fee percentage per annum								0.375%
Letter of Credit Facility, Maximum Borrowing Amount								200,000,000
Letters Of Credit Facing Fee			500
Letters Of Credit Facing Fee Percentage			0.25%
Pre-tax charge for loss on early extinguishment of debt	$ (976,000)	$ (4,537,000)	$ (976,000)	$ (4,537,000)