Contingencies	12 Months Ended
Dec. 31, 2019
Contingencies [Abstract]
Contingencies	Contingencies Management fee The Group's financing agreements permit the payment to related parties of management, consulting, monitoring and advisory fees (the "Management Fee") of up to 1.5% of the Group's Adjusted EBITDA (as defined in the financing agreements) for the previous year. The Credit Agreement permits the Group to pay an additional Management Fee of up to $22 million in respect of the 2009 and 2010 financial years. No amount has been accrued in respect of the remaining 2009 and 2010 permitted Management Fee of up to $22 million. Other matters The Group is party to litigation, legal proceedings and tax examinations arising from its operations. The Group establishes provisions for claims and proceedings that constitute a present obligation when it is probable that an outflow of resources will be required to settle the obligation and a reliable estimate of such obligation can be made. While it is not possible to predict the outcome of any of these matters, based on management's assessment of the facts and circumstances now known, management does not believe any of these matters, individually or in the aggregate, will have a material adverse effect on the Group's financial position, results of operations or cash flows. However, actual outcomes may differ from those expected and could have a material effect on the Group's financial position, results of operations or cash flows in a particular future period. As of December 31, 2019, except for amounts provided, there were no legal proceedings pending other than those for which the Group has determined that the possibility of a material outflow is remote. As part of the agreements for the sale of various businesses, the Group has provided certain warranties and indemnities to the respective purchasers as set out in the respective sale agreements. These warranties and indemnities are subject to various terms and conditions affecting the duration and total amount of the indemnities. As of December 31, 2019, the Group is not aware of any material claims under these agreements that would give rise to an additional liability. However, if such claims arise in the future, they could have a material effect on the Group’s financial position, results of operations and cash flows.

Contingencies

Management fee

The Group's financing agreements permit the payment to related parties of management, consulting, monitoring and advisory fees (the "Management Fee") of up to 1.5% of the Group's Adjusted EBITDA (as defined in the financing agreements) for the previous year.

The Credit Agreement permits the Group to pay an additional Management Fee of up to $22 million in respect of the 2009 and 2010 financial years. No amount has been accrued in respect of the remaining 2009 and 2010 permitted Management Fee of up to $22 million.

Other matters

The Group is party to litigation, legal proceedings and tax examinations arising from its operations. The Group establishes provisions for claims and proceedings that constitute a present obligation when it is probable that an outflow of resources will be required to settle the obligation and a reliable estimate of such obligation can be made. While it is not possible to predict the outcome of any of these matters, based on management's assessment of the facts and circumstances now known, management does not believe any of these matters, individually or in the aggregate, will have a material adverse effect on the Group's financial position, results of operations or cash flows. However, actual outcomes may differ from those expected and could have a material effect on the Group's financial position, results of operations or cash flows in a particular future period. As of December 31, 2019, except for amounts provided, there were no legal proceedings pending other than those for which the Group has determined that the possibility of a material outflow is remote.

As part of the agreements for the sale of various businesses, the Group has provided certain warranties and indemnities to the respective purchasers as set out in the respective sale agreements. These warranties and indemnities are subject to various terms and conditions affecting the duration and total amount of the indemnities. As of December 31, 2019, the Group is not aware of any material claims under these agreements that would give rise to an additional liability. However, if such claims arise in the future, they could have a material effect on the Group’s financial position, results of operations and cash flows.