Investments (Tables)

3 Months Ended

Mar. 31, 2018

Schedule of investments in available-for-sale securities at fair values

Investments in available-for-sale securities at fair value were as follows for the periods ended (in thousands):



	March 31, 2018									December 31, 2017
Description of the Securities	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
Agency securities	$	378,906	$	457	$	(3,498	)	$	375,865	$	441,315	$	509	$	(2,760	)	$	439,064
Corporate securities	638,946		127		(5,689		)	633,384		810,444		268		(3,020		)	807,692
Municipal securities	2,500		5		—			2,505		3,965		2		(2		)	3,965
Government securities	273,663		13		(1,509		)	272,167		367,595		44		(1,516		)	366,123
Total	$	1,294,015	$	602	$	(10,696	)	$	1,283,921	$	1,623,319	$	823	$	(7,298	)	$	1,616,844

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

+ References + Details