Marketable Securities

The Company invests in marketable securities that are classified as available-for-sale and records them at fair value in the Company's unaudited Consolidated Balance Sheets. Marketable securities reported as current assets represent investments that mature within one year from the balance sheet date. Long-term marketable securities represent investments with maturity dates greater than one year from the balance sheet date.

Unrealized gains and losses are excluded from earnings and reported as a separate component of accumulated other comprehensive income until the security is sold or matures. Gains or losses realized from sales of marketable securities are computed based on the specific identification method and recognized as a component of "Other loss, net" in the accompanying unaudited Consolidated Statements of Operations. There were no sales of marketable securities during the three and six months ended March 31, 2017. During the three months ended March 31, 2016, the Company sold marketable securities with a fair value and amortized cost of $3.5 million. Net losses recognized on sale of marketable securities and reclassified by the Company from accumulated other comprehensive income into "Other loss, net" in the accompanying unaudited Consolidated Statements of Operations were insignificant during the three months ended March 31, 2016. The Company collected cash proceeds of $3.5 million from the sale of marketable securities during the three months ended March 31, 2016. During the six months ended March 31, 2016, the Company sold marketable securities with a fair value of $127.6 million and amortized cost of $127.7 million and recognized net losses of $0.2 million. Gross gains reported as a component of net losses recognized on the sale of marketable securities were insignificant during the six months ended March 31, 2016. The Company collected cash proceeds of $127.0 million from the sale of marketable securities and reclassified unrealized net holding losses of $0.2 million from accumulated other comprehensive income into "Other loss, net" in the accompanying unaudited Consolidated Statements of Operations as a result of these transactions. Unrealized losses on available for sale securities presented as a component of accumulated other comprehensive income were insignificant at March 31, 2017 and September 30, 2016.

The following is a summary of the amortized cost and the fair value, including accrued interest receivable, as well as unrealized holding gains (losses) on the short-term and long-term marketable securities as of March 31, 2017 and September 30, 2016 (in thousands):



	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
March 31, 2017:
Corporate securities	$	2,498	$	—	$	—		$	2,498
Other debt securities	47		—		—			47
Municipal securities	3,637		1		(5		)	3,633
Total marketable securities	$	6,182	$	1	$	(5	)	$	6,178

September 30, 2016:
Corporate securities	$	2,394	$	—	$	—		$	2,394
Other debt securities	39		—		—			39
Municipal securities	3,704		1		(3		)	3,702
	$	6,137	$	1	$	(3	)	$	6,135

The fair values of the marketable securities by contractual maturities at March 31, 2017 are presented below (in thousands):



	Fair Value
Due in one year or less	$	1,495
Due after one year through five years	2,185
Due after ten years	2,498
Total marketable securities	$	6,178

Expected maturities could differ from contractual maturities because the security issuers may have the right to prepay obligations without prepayment penalties.

The Company reviews the marketable securities for impairment at each reporting period to determine if any of the securities have experienced an other-than-temporary decline in fair value. The Company considers factors, such as the length of time and extent to which the market value has been less than the cost, the financial condition and near-term prospects of the issuer, the Company's intent to sell, or whether it is more likely than not it will be required to sell the investment before recovery of its amortized cost basis. If the Company believes that an other-than-temporary decline in fair value has occurred, it writes down the investment to fair value and recognizes the credit loss in earnings and the non-credit loss in accumulated other comprehensive income. As of March 31, 2017 and September 30, 2016, aggregate fair value of the marketable securities in an unrealized loss position was $3.0 million and $2.5 million, respectively, and was comprised entirely of municipal securities. Aggregate unrealized losses for these securities were insignificant as of March 31, 2017 and September 30, 2016 and are presented in the table above. These securities were not considered other-than-temporarily impaired and, as such, the Company did not recognize impairment losses during the periods then ended. The unrealized losses are attributable to changes in interest rates that impact the value of the investments.