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Accumulated Other Comprehensive Income (Loss)
 3 Months Ended
Mar. 31, 2017
Equity [Abstract]  
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss)
The following table presents the balances of related after-tax components of accumulated other comprehensive income (loss). 
 
Accumulated Short-term Investment Transactions
 
Accumulated
Currency
Translation
 
Accumulated
Postretirement
Transactions
 
Accumulated
Other
Comprehensive
Income (Loss)
 
(in thousands)
Balance December 31, 2016
$
415

 
$
(2,015
)
 
$
(4,731
)
 
$
(6,331
)
Currency translation
—

 
129

 
—

 
129

Reclassifications related to pension and postretirement plans, net of tax effect of $66 (1)
—

 
—

 
108

 
108

Unrealized loss on available for sale securities, net of tax effect of $504
(936
)
 
—

 
—

 
(936
)
Balance March 31, 2017
$
(521
)
 
$
(1,886
)
 
$
(4,623
)
 
$
(7,030
)
 
(1)—
These accumulated other comprehensive income components relate to amortization of actuarial loss/(gain) and prior period service costs/(benefits) and are included in the computation of net periodic costs for our pension and postretirement plans. See Note 10 for further details and pre-tax amounts.
(2)—
The unrealized gain on available for sale securities, net of tax represents the change in fair value estimates that are based on quoted prices with an active trading market (Level 1).