Marketable Securities (Tables)

12 Months Ended

Dec. 31, 2015

Marketable Securities [Abstract]

Schedule of Marketable Securities

All marketable securities were classified as held-to-maturity as of the dates presented and the carrying amounts of held-to-maturity securities were as follows (in thousands):

December 31,	2015		2014
U.S. Government and agency obligations	$	15,051	$	10,511
Commercial paper	9,992		14,993
Total short-term marketable securities	25,043		25,504
U.S. Government and agency obligations	80,652		76,563
Total long-term marketable securities	80,652		76,563
Total marketable securities	$	105,695	$	102,067

Held-to-maturity Securities

Scheduled maturities of held-to-maturity investments were as follows (in thousands):

December 31, 2015
Due within one year	$	25,043
Due in one to five years	80,652
Total	$	105,695