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Long-Term Debt (Detail) - USD ($) $ in Thousands |  | 3 Months Ended | 9 Months Ended |
--- | --- | --- | --- | ---
Aug. 01, 2019 | Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Dec. 31, 2018
Debt Instrument [Line Items] |  |  |  |  |  |
Loss on early extinguishment of debt |  | $ 1,676 | $ 0 | $ 1,676 | $ 2,493 |
Total debt - principal |  | 2,661,075 | 2,933,688 | 2,661,075 | 2,933,688 | $ 2,317,723
Less unamortized debt issuance costs |  | 9,690 | 14,009 | 9,690 | 14,009 | 13,109
Debt long term and short term less unamortized debt issuance costs combined amount |  | 2,651,385 | 2,919,679 | 2,651,385 | 2,919,679 | 2,304,614
Less current portion |  | 841,430 | 733,404 | 841,430 | 733,404 | 170,214
Long-term debt |  | 1,809,955 | 2,186,275 | 1,809,955 | 2,186,275 | 2,134,400
Bank debt [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total debt - principal |  | 1,619,005 | 1,557,478 | 1,619,005 | 1,557,478 | 951,800
Five and One Half Percent Senior Notes due 2022 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Loss on early extinguishment of debt |  | 1,700 |  |  |  |
Extinguishment of debt | $ 300,000 |  |  |  |  |
Debt Instrument, Redemption Price, Percentage | 100.00% |  |  |  |  |
Total debt - principal |  | 0 | $ 300,000 | 0 | $ 300,000 | $ 300,000
Senior note interest rate (percent) | 5.50% |  | 5.50% |  | 5.50% | 5.50%
4 3/4% Senior Notes due 2025 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total debt - principal |  | $ 300,000 | $ 300,000 | $ 300,000 | $ 300,000 | $ 300,000
Senior note interest rate (percent) |  | 4.75% | 4.75% | 4.75% | 4.75% | 4.75%
3 1/4% Senior Notes due 2025 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total debt - principal |  | $ 708,630 | $ 754,260 | $ 708,630 | $ 754,260 | $ 744,380
Senior note interest rate (percent) |  | 3.25% | 3.25% | 3.25% | 3.25% | 3.25%
Finance leases [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total debt - principal |  | $ 33,440 | $ 21,950 | $ 33,440 | $ 21,950 | $ 21,543
Revolving Loan [Member] | Bank debt [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total debt - principal |  | 766,000 | 698,000 | 766,000 | 698,000 | 0
Less current portion |  | 766,000 |  | 766,000 |  |
U S Term Loans [Member] | Bank debt [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total debt - principal |  | 800,000 | 800,000 | 800,000 | 800,000 | 800,000
Less current portion |  | 40,000 |  | 40,000 |  |
Canadian Term Loans [Member] | Bank debt [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total debt - principal |  | 15,943 | 23,335 | 15,943 | 23,335 | 22,103
Other Foreign Bank Revolving And Term Loans [Member] | Bank debt [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Total debt - principal |  | 37,062 | $ 36,143 | 37,062 | $ 36,143 | $ 129,697
Less current portion |  | 33,800 |  | 33,800 |  |
Finance leases [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Less current portion |  | $ 1,600 |  | $ 1,600 |  |

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