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Schedule II Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2015
Valuation and Qualifying Accounts [Abstract]  
Schedule II Valuation and Qualifying Accounts
SCHEDULE II
VALUATION AND QUALIFYING ACCOUNTS
 
 
 
Additions
 
 
 
 

Balance at
Beginning of Period (1)
 
Charged to
Costs and Expenses (2)
 
Credited to
Other Accounts (3)
 
Amount
Written Off (4)
 
Balance at
End of Period (1)
 
(In thousands)
Year ended December 31, 2013
 
 
 
 
 
 
 
 
 
Accounts receivable
$
722

 
$
195

 
$
(67
)
 
$
(360
)
 
$
490

Investment in sales-type leases
607

 
49

 
—

 
(489
)
 
167

Total allowances deducted from assets
$
1,329

 
$
244

 
$
(67
)
 
$
(849
)
 
$
657

Year ended December 31, 2014
 
 
 
 
 
 
 
 
 
Accounts receivable
$
490

 
$
941

 
$
(60
)
 
$
(165
)
 
$
1,206

Investment in sales-type leases
167

 
—

 
(5
)
 
—

 
162

Total allowances deducted from assets
$
657

 
$
941

 
$
(65
)
 
$
(165
)
 
$
1,368

Year ended December 31, 2015
 
 
 
 
 
 
 
 
 
Accounts receivable
$
1,206

 
$
453

 
$
28

 
$
(447
)
 
$
1,240

Investment in sales-type leases
162

 
(99
)
 
106

 
—

 
169

Total allowances deducted from assets
$
1,368

 
$
354

 
$
134

 
$
(447
)
 
$
1,409

__________________________________________________
(1) 
Allowance for doubtful accounts.
(2) 
Represents amounts charged to bad debt expense.
(3) 
Represents amounts credited to bad debt expense.
(4) 
Represents amounts written-off, net of recoveries.