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Reinsurance | 12 Months Ended
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Dec. 31, 2018
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Abstract] |
Reinsurance | REINSURANCE The Company purchases reinsurance and other protection to manage its risk portfolio and to reduce its exposure to large losses. The Company currently has in place contracts that provide for recovery of a portion of certain claims and claim expenses, generally in excess of various retentions or on a proportional basis. In addition to loss recoveries, certain of the Company’s ceded reinsurance contracts provide for payments of additional premiums, for reinstatement premiums and for lost no-claims bonuses, which are incurred when losses are ceded to the respective reinsurance contracts. The Company remains liable to the extent that any reinsurer fails to meet its obligations. The following table sets forth the effect of reinsurance and retrocessional activity on premiums written and earned and on net claims and claim expenses incurred:
| Year ended December 31, | 2018 |  | 2017 |  | 2016 |
| Premiums written |  |  |  |  |  |
| Direct | $ | 337,587 |  |  | $ | 290,730 |  |  | $ | 208,282 |  |
| Assumed | 2,972,840 |  |  | 2,506,810 |  |  | 2,166,294 |  |
| Ceded | (1,178,525 | ) |  | (926,215 | ) |  | (839,264 | ) |
| Net premiums written | $ | 2,131,902 |  |  | $ | 1,871,325 |  |  | $ | 1,535,312 |  |
| Premiums earned |  |  |  |  |  |
| Direct | $ | 292,219 |  |  | $ | 244,285 |  |  | $ | 157,112 |  |
| Assumed | 2,779,796 |  |  | 2,307,219 |  |  | 1,874,993 |  |
| Ceded | (1,095,886 | ) |  | (833,929 | ) |  | (628,675 | ) |
| Net premiums earned | $ | 1,976,129 |  |  | $ | 1,717,575 |  |  | $ | 1,403,430 |  |
| Claims and claim expenses |  |  |  |  |  |
| Gross claims and claim expenses incurred | $ | 2,578,536 |  |  | $ | 3,420,388 |  |  | $ | 710,651 |  |
| Claims and claim expenses recovered | (1,458,518 | ) |  | (1,558,960 | ) |  | (179,820 | ) |
| Net claims and claim expenses incurred | $ | 1,120,018 |  |  | $ | 1,861,428 |  |  | $ | 530,831 |  |
At December 31, 2018, the Company’s reinsurance recoverable balance was $2.4 billion (2017 - $1.6 billion). Of this amount, 60.8% is fully collateralized by our reinsurers, 38.0% is recoverable from reinsurers rated A- or higher by major rating agencies and 1.2% is recoverable from reinsurers rated lower than A- by major rating agencies (2017 - 54.5%, 44.5% and 1.0%, respectively). The reinsurers with the three largest balances accounted for 15.5%, 6.7% and 6.5%, respectively, of the Company’s reinsurance recoverable balance at December 31, 2018 (2017 - 10.4%, 7.5% and 7.3%, respectively). The valuation allowance recorded against reinsurance recoverable was $9.0 million at December 31, 2018 (2017 - $7.0 million). The three largest company-specific components of the valuation allowance represented 16.2%, 14.8% and 12.3%, respectively, of the Company’s total valuation allowance at December 31, 2018 (2017 - 11.1%, 9.2% and 8.4%, respectively).

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- Definition The entire disclosure pertaining to the existence, magnitude and information about insurance that has been ceded to or assumed from another insurance company, including the methodologies and assumptions used in determining recorded amounts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -URI http://asc.fasb.org/topic&trid=2303980 + Details
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