Senior Notes payable and letter of credit facilities (Tables)

12 Months Ended

Dec. 31, 2017

Debt Disclosure [Abstract]

Schedule of Line of Credit Facilities

As of December 31, 2017, the Company had entered into the following letter of credit facilities:

	Facility (1)		Utilized		Collateral
December 31, 2017	($ in thousands)
Citibank	300,000		163,262		163,262
Lloyds Bank	125,000		87,225		87,225
	$	425,000	$	250,487	$	250,487

(1) During the year ended December 31, 2017, the BNP Paribas facility of $50.0 million with Third Point Re USA and the J.P. Morgan facility of and $50.0 million with Third Point Re BDA were not renewed.