XML 13 R48.htm IDEA: XBRL DOCUMENT v2.4.0.8
Investments - Amortized cost and estimated fair value of investments in available-for-sale securities, by contractual maturity (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Cost  
Mature after one year through three years $ 228
Mature in more than three years 32,146
Total debt securities 32,374
Securities with no contractual maturities 180,400
Total 212,774
Estimated Fair Value  
Mature after one year through three years 236
Mature in more than three years 33,653
Total debt securities 33,889
Securities with no contractual maturities 198,309
Total $ 232,198