XML 155 R117.htm IDEA: XBRL DOCUMENT v2.4.0.8
Commitments and Contingencies (Narrative) (Details) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Purchase amount of annuities $ 4,900,000    
Rental expense for operating leases for office space and equipment 13,200,000 13,100,000 11,600,000
2018 2018    
Total minimum rental commitments under non-concellable leases 49,000,000    
Other Investments [Member]
      
Remaining Commitment $ 56,538,000