Reinsurance (Details 4) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Amounts of letters of credit and cash available to us as collateral, plus other potential offsets
Payables to reinsurers	$ 220,281	$ 208,850
Letters of credit	85,752	100,529
Funds held in trust	148,508	88,310
Total credits	$ 454,541	$ 397,689