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Long-Term Debt (Details) £ in Millions, AUD in Millions, $ in Millions |  | 1 Months Ended | 9 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Apr. 02, 2014 USD ($) | Nov. 30, 2014 USD ($) | Aug. 31, 2012 USD ($) | Sep. 30, 2015 GBP (£) | Sep. 30, 2015 AUD | Sep. 30, 2015 GBP (£) | Sep. 30, 2015 USD ($) | May. 01, 2015 USD ($) | Apr. 30, 2015 GBP (£) | Dec. 31, 2014 USD ($) | Dec. 31, 2012 GBP (£)
Long Term Debt |  |  |  |  |  |  |  |  |  |  |
Total long-term debt |  |  |  |  |  |  | $ 1,184.9 |  |  | $ 1,353.2 |
Less: current portion |  |  |  |  |  |  | (29.7) |  |  | (37.2) |
Net long-term debt |  |  |  |  |  |  | 1,155.2 |  |  | 1,316.0 |
U.S. Credit Agreement Revolving Credit Line |  |  |  |  |  |  |  |  |  |  |
Long Term Debt |  |  |  |  |  |  |  |  |  |  |
Total long-term debt |  |  |  |  |  |  | 78.0 |  |  |  |
Initial borrowing capacity | $ 450.0 |  |  |  |  |  |  |  |  |  |
Revolving loans solely for future U.S. acquisitions |  |  |  |  |  |  |  | $ 250.0 |  |  |
Maximum credit available |  |  |  |  |  |  | 700.0 | $ 700.0 |  |  |
Base rate of interest on loans | LIBOR |  |  | LIBOR |  |  |  |  |  |  |
Line of credit basis spread on variable rate (as a percent) | 2.00% |  |  | 2.00% |  |  |  |  |  |  |
Incremental interest rate for uncollateralized borrowings in excess of maximum limit (as a percent) | 1.50% |  |  | 1.50% |  |  |  |  |  |  |
Balance outstanding under credit agreement |  |  |  |  |  |  | 78.0 |  |  |  |
U.S. Credit Agreement Term Loan |  |  |  |  |  |  |  |  |  |  |
Long Term Debt |  |  |  |  |  |  |  |  |  |  |
Total long-term debt |  |  |  |  |  |  |  |  |  | 88.0 |
U.K. Credit Agreement Revolving Credit Line and Overdraft Line Of Credit |  |  |  |  |  |  |  |  |  |  |
Long Term Debt |  |  |  |  |  |  |  |  |  |  |
Balance outstanding under credit agreement |  |  |  |  |  | £ 32.7 | 49.5 |  |  |  |
U.K. Credit Agreement Revolving Credit Line |  |  |  |  |  |  |  |  |  |  |
Long Term Debt |  |  |  |  |  |  |  |  |  |  |
Total long-term debt |  |  |  |  |  |  | 46.9 |  |  | 121.5 |
Maximum credit available | £ |  |  |  |  |  | 150.0 |  |  | £ 100.0 |  |
Base rate of interest on loans |  |  |  | LIBOR |  |  |  |  |  |  |
U.K. Credit Agreement Revolving Credit Line | Minimum |  |  |  |  |  |  |  |  |  |  |
Long Term Debt |  |  |  |  |  |  |  |  |  |  |
Line of credit basis spread on variable rate (as a percent) |  |  |  | 1.35% |  |  |  |  |  |  |
U.K. Credit Agreement Revolving Credit Line | Maximum |  |  |  |  |  |  |  |  |  |  |
Long Term Debt |  |  |  |  |  |  |  |  |  |  |
Line of credit basis spread on variable rate (as a percent) |  |  |  | 3.00% |  |  |  |  |  |  |
U.K. Agreement Term Loan |  |  |  |  |  |  |  |  |  |  |
Long Term Debt |  |  |  |  |  |  |  |  |  |  |
Total long-term debt |  |  |  |  |  |  | 11.3 |  |  | 18.7 |
Maximum credit available | £ |  |  |  |  |  |  |  |  |  |  | £ 30.0
Balance outstanding under credit agreement |  |  |  |  |  | 7.5 | 11.3 |  |  |  |
Repayment of term loan, quarterly installments | £ |  |  |  | £ 1.5 |  |  |  |  |  |  |
Frequency of principal repayments |  |  |  | Quarterly |  |  |  |  |  |  |
Final payment due December 31, 2015 | £ |  |  |  |  |  | £ 7.5 |  |  |  |  |
U.K. Agreement Term Loan | Minimum |  |  |  |  |  |  |  |  |  |  |
Long Term Debt |  |  |  |  |  |  |  |  |  |  |
Low end of interest rate, depending on UK subsidiaries ratios (as a percent) |  |  |  | 2.675% |  |  |  |  |  |  |
U.K. Agreement Term Loan | Maximum |  |  |  |  |  |  |  |  |  |  |
Long Term Debt |  |  |  |  |  |  |  |  |  |  |
High end of interest rate, depending on UK subsidiaries ratios (as a percent) |  |  |  | 4.325% |  |  |  |  |  |  |
U.K. Credit Agreement Overdraft Line of Credit |  |  |  |  |  |  |  |  |  |  |
Long Term Debt |  |  |  |  |  |  |  |  |  |  |
Total long-term debt |  |  |  |  |  |  | 2.6 |  |  | 5.7 |
Base rate of interest on loans |  |  |  | Bank of England Base Rate |  |  |  |  |  |  |
Line of credit basis spread on variable rate (as a percent) |  |  |  | 1.75% |  |  |  |  |  |  |
5.375% Senior Subordinated Notes Due 2024 |  |  |  |  |  |  |  |  |  |  |
Long Term Debt |  |  |  |  |  |  |  |  |  |  |
Total long-term debt |  |  |  |  |  |  | $ 300.0 |  |  | $ 300.0 |
Interest rate (as a percent) |  | 5.375% |  |  | 5.375% | 5.375% | 5.375% |  |  | 5.375% |
Debt issued |  | $ 300.0 |  |  |  |  |  |  |  |  |
Change of control, redemption price as a percentage of principal |  | 101.00% |  |  |  |  |  |  |  |  |
Sale of assets, redemption price as percentage of principal |  | 100.00% |  |  |  |  |  |  |  |  |
Domestic Subsidiaries ownership guaranteeing obligations (as a percent) |  |  |  |  | 100.00% | 100.00% | 100.00% |  |  |  |
5.375% Senior Subordinated Notes Due 2024 | Maximum | Debt Redemption Prior To December 1, 2017 |  |  |  |  |  |  |  |  |  |  |
Long Term Debt |  |  |  |  |  |  |  |  |  |  |
Specified equity offerings, percentage of debt which may be redeemed |  | 40.00% |  |  |  |  |  |  |  |  |
5.75% Senior Subordinated Notes Due 2022 |  |  |  |  |  |  |  |  |  |  |
Long Term Debt |  |  |  |  |  |  |  |  |  |  |
Total long-term debt |  |  |  |  |  |  | $ 550.0 |  |  | $ 550.0 |
Interest rate (as a percent) |  |  | 5.75% |  | 5.75% | 5.75% | 5.75% |  |  | 5.75% |
Debt issued |  |  | $ 550.0 |  |  |  |  |  |  |  |
Change of control, redemption price as a percentage of principal |  |  | 101.00% |  |  |  |  |  |  |  |
Sale of assets, redemption price as percentage of principal |  |  | 100.00% |  |  |  |  |  |  |  |
Domestic Subsidiaries ownership guaranteeing obligations (as a percent) |  |  |  |  | 100.00% | 100.00% | 100.00% |  |  |  |
U.S. Commercial Truck Capital Loan |  |  |  |  |  |  |  |  |  |  |
Long Term Debt |  |  |  |  |  |  |  |  |  |  |
Total long-term debt |  |  |  |  |  |  |  |  |  | $ 60.5 |
Balance outstanding under credit agreement |  |  |  |  |  |  |  |  |  | 60.5 |
Australia Working Capital Loan Agreement |  |  |  |  |  |  |  |  |  |  |
Long Term Debt |  |  |  |  |  |  |  |  |  |  |
Maximum credit available |  |  |  |  | AUD 28.0 |  | $ 19.7 |  |  |  |
Base rate of interest on loans |  |  |  | 30-day Bill Rate |  |  |  |  |  |  |
Line of credit basis spread on variable rate (as a percent) |  |  |  | 2.35% |  |  |  |  |  |  |
Balance outstanding under credit agreement |  |  |  |  |  |  | 0.0 |  |  |  |
Mortgage Facilities |  |  |  |  |  |  |  |  |  |  |
Long Term Debt |  |  |  |  |  |  |  |  |  |  |
Total long-term debt |  |  |  |  |  |  | 167.8 |  |  | 169.7 |
Balance outstanding under credit agreement |  |  |  |  |  |  | 167.8 |  |  |  |
Other Debt Securities |  |  |  |  |  |  |  |  |  |  |
Long Term Debt |  |  |  |  |  |  |  |  |  |  |
Total long-term debt |  |  |  |  |  |  | $ 28.3 |  |  | $ 39.1 |

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