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Valuation And Qualifying Accounts (In Thousands) (Tables)
12 Months Ended
Dec. 31, 2017
Valuation and Qualifying Accounts [Abstract]  
Schedule of Valuation and Qualifying Accounts
 
Balance at Beginning of Period
 
Additions (1)
 
Deductions Charged to Reserves
 
Balance at End of Period
Year ended December 31, 2017:
 
 
 
 
 
 
 
Allowance for doubtful accounts (1)
$
3,161

 
$
3,852

 
$
(3,308
)
 
$
3,705

Accounts receivable allowances (2)
$
9,533

 
$
168,945

 
$
(166,418
)
 
$
12,060

Rebates, fees and returns reserves(1)
$
89,466

 
$
255,471

 
$
(244,235
)
 
$
100,702

Valuation allowance for deferred tax assets (3)
$
1,429

 
$
4,732

 
$
(564
)
 
$
5,597

Year ended December 31, 2016:
 
 
 
 
 
 
 
Allowance for doubtful accounts (1)
$
900

 
$
3,209

 
$
(948
)
 
$
3,161

Accounts receivable allowances (2)
$
10,783

 
$
122,792

 
$
(124,042
)
 
$
9,533

Rebates, fees and returns reserves(1)
$
45,162

 
$
186,941

 
$
(142,637
)
 
$
89,466

Valuation allowance for deferred tax assets (3)
$
11,859

 
$
632

 
$
(11,062
)
 
$
1,429

Year ended December 31, 2015:
 
 
 
 
 
 
 
Allowance for doubtful accounts (1)
$

 
$
900

 
$

 
$
900

Accounts receivable allowances (2)
$
11,618

 
$
93,887

 
$
(94,722
)
 
$
10,783

Rebates, fees and returns reserves(1)
$
43,892

 
$
120,293

 
$
(119,023
)
 
$
45,162

Valuation allowance for deferred tax assets (3)
$
33,557

 
$

 
$
(21,698
)
 
$
11,859

________________________

(1) 
Addition to allowance for doubtful accounts are recorded in selling, general and administrative expenses. Additions to rebates, fees and returns reserves are recorded as a reduction of revenues.

(2) 
Accounts receivable allowances represent discounts and other chargebacks related to the provision for our product sales.

(3) 
The valuation allowance for deferred tax assets includes purchase accounting adjustments and other activity related to our acquisition of Lumara Health. At December 31, 2017, the valuation allowance related primarily to certain of our state NOL and credit carryforwards.