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Long-Term Debt - Credit Facility Agreements (Detail) € in Millions, $ in Millions | 3 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Sep. 30, 2019 USD ($) | Jun. 30, 2018 USD ($) | Mar. 31, 2017 EUR (€) | Mar. 31, 2017 CAD ($) | Mar. 31, 2017 USD ($) | Dec. 31, 2019 CAD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 CAD ($) | Dec. 31, 2018 USD ($) | Mar. 24, 2017 CAD ($) | Mar. 24, 2017 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt, due in the next twelve months |  |  |  |  |  |  |  |  |  | $ 27,877,000 |  |  |  |
Debt, Long-term and Short-term, Combined Amount |  |  |  |  |  |  |  |  |  | 2,258,873,000 |  | $ 2,317,723,000 |  |
Repayments of long-term debt |  |  |  |  |  |  | $ 359,432,000 | $ 286,200,000 | $ 755,037,000 |  |  |  |  |
Letters Of Credit Facing Fee |  |  |  |  |  |  | $ 500 |  |  |  |  |  |  |
Letters Of Credit Facing Fee Percentage |  |  |  |  |  | 0.25% | 0.25% |  |  |  |  |  |  |
Loss on early extinguishment of debt | $ 1,700,000 | $ 2,500,000 |  |  |  |  | $ 1,676,000 | 2,493,000 | $ 7,052,000 |  |  |  |  |
Bank Borrowings [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt, Long-term and Short-term, Combined Amount |  |  |  |  |  |  |  |  |  | 795,830,000 |  | 951,800,000 |  |
Term Loans And Revolving Loans Maintained as Eurodollar Rate, Euro Rate or CDOR Rate Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, margin |  |  |  |  |  | 1.25% | 1.25% |  |  |  |  |  |  |
Term Loans and Revolving Loans Maintained as Base Rate or Canadian Prime Rate Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of credit facility, margin |  |  |  |  |  | 0.25% | 0.25% |  |  |  |  |  |  |
Other Foreign Bank Revolving And Term Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt, due in the next twelve months |  |  |  |  |  |  |  |  |  | 27,900,000 |  |  |  |
Repayments of Debt | € |  |  | € 34.0 |  |  |  |  |  |  |  |  |  |  |
Other Foreign Bank Revolving And Term Loans [Member] | Bank Borrowings [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt, Long-term and Short-term, Combined Amount |  |  |  |  |  |  |  |  |  | 31,127,000 |  | 129,697,000 |  |
Finance Leases [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt, due in the next twelve months |  |  |  |  |  |  |  |  |  | 1,900,000 |  |  |  |
Revolving Loan - Letters of Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  | $ 125,000,000 |  |  |  |
Multicurrency Revolving Loan Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1,190,000,000
US Term Loan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of Debt |  |  |  |  | $ 98,000,000.0 |  |  |  |  |  |  |  |  |
Line of Credit Facility, Interest Rate at Period End |  |  |  |  |  | 3.05% |  |  |  | 3.05% |  |  |  |
U.S. term loans [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 800,000,000.0
Repayments of Debt |  |  |  |  |  |  | $ 40,000,000.0 |  |  |  |  |  |  |
U.S. term loans [Member] | Bank Borrowings [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt, Long-term and Short-term, Combined Amount |  |  |  |  |  |  |  |  |  | $ 760,000,000 |  | 800,000,000 |  |
Canadian Term Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  |  |  |  | $ 45.5 |
Repayments of Debt |  |  |  | $ 14.0 |  | $ 24.0 |  |  |  |  |  |  |  |
Line of Credit Facility, Interest Rate at Period End |  |  |  |  |  | 3.33% |  |  |  | 3.33% |  |  |  |
Canadian Term Loans [Member] | Bank Borrowings [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt, Long-term and Short-term, Combined Amount |  |  |  |  |  | $ 6.1 |  |  |  | $ 4,703,000 | $ 30.1 | 22,103,000 |  |
Multicurrency Incremental Loan Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  | 1,250,000,000 |  |  |  |
Term Loan [Member] | Bank Borrowings [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt, Long-term and Short-term, Combined Amount |  |  |  |  |  |  |  |  |  | $ 764,700,000 |  | $ 822,100,000 |  |
Euro Term Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repayments of Debt | € |  |  | € 187.0 |  |  |  |  |  |  |  |  |  |  |
Term Loan Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt, Weighted Average Interest Rate |  |  |  |  |  | 3.60% |  |  | 3.10% | 3.60% | 3.60% | 3.60% |  |
2018 Amendment to the Credit Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss on early extinguishment of debt |  |  |  |  |  |  |  | $ 1,100,000 |  |  |  |  |  |
Revolving Loan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt, Weighted Average Interest Rate |  |  |  |  |  | 3.50% |  |  | 3.00% | 3.50% | 3.50% | 3.50% |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage |  |  |  |  |  | 0.25% | 0.25% |  |  |  |  |  |  |
Revolving Loan [Member] | Bank Borrowings [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt, Long-term and Short-term, Combined Amount |  |  |  |  |  |  |  |  |  | $ 0 |  | $ 0 |  |
Canadian Revolving Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  |  |  |  | $ 15.0 |
Revolving And Term Loans [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loss on early extinguishment of debt |  |  |  |  |  |  |  |  | $ 600,000 |  |  |  |  |
Maximum [Member] | Revolving Loan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage |  |  |  |  |  | 0.30% | 0.30% |  |  |  |  |  |  |
Minimum [Member] | Multicurrency Incremental Loan Facility [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional borrowing capacity |  |  |  |  |  |  |  |  |  | $ 50,000,000 |  |  |  |
Minimum [Member] | Revolving Loan [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage |  |  |  |  |  | 0.20% | 0.20% |  |  |  |  |  |  |

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