Investments (Purchased Credit Impaired Investments) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014		Jun. 30, 2013
Certain Loans Acquired in Transfer Accounted for as Available-for-sale Debt Securities, Acquired [Abstract]
Contractually required payments (including interest)	$ 55,671		$ 109,931
Cash flows expected to be collected	44,799	[1]	88,422	[1]
Fair value of investments acquired	$ 31,544		$ 58,471

[1] Represents undiscounted principal and interest cash flow expectations at the date of acquisition.