Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Income Tax Contingency [Line Items]
Total net deferred tax liabilities	$ 30,000,000
Net operating loss carryforward	17,800,000
Valuation allowance	23,800,000
Loss carryforwards per year	2,800,000
Unrecognized tax benefits	0	0
ARIS [Member]
Income Tax Contingency [Line Items]
Net operating loss carryforward	1,000,000
Malta [Member]
Income Tax Contingency [Line Items]
Valuation allowance	1,800,000
Decreased valuation allowance	300,000
Brazil [Member]
Income Tax Contingency [Line Items]
Valuation allowance	6,100,000
Decreased valuation allowance	1,300,000
December 31, 2025 [Member]
Income Tax Contingency [Line Items]
Loss carryforwards, amounts expiring if not utilized	16,300,000
December 31, 2027 [Member]
Income Tax Contingency [Line Items]
Loss carryforwards, amounts expiring if not utilized	1,500,000
December 31, 2027 [Member] | ARIS [Member]
Income Tax Contingency [Line Items]
Loss carryforwards, amounts expiring if not utilized	200,000
December 31, 2028 [Member] | ARIS [Member]
Income Tax Contingency [Line Items]
Loss carryforwards, amounts expiring if not utilized	400,000
December 31, 2029 [Member] | ARIS [Member]
Income Tax Contingency [Line Items]
Loss carryforwards, amounts expiring if not utilized	400,000
PXRE Reinsurance Company [Member]
Income Tax Contingency [Line Items]
Valuation allowance	15,900,000
Reduced valuation allowance	$ 100,000