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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
12 Months Ended
Dec. 31, 2014
Accounting Policies [Abstract]  
Aging of net accounts receivable
The following table sets forth the aging of our net accounts receivable (net of allowance for contractual adjustments and prior to allowance for doubtful accounts), aged based on date of service and categorized based on the three primary overall types of accounts receivable characteristics (in thousands):
 
 
December 31, 2014
 
December 31, 2013
 
 
0 - 180 days
 
Over 180 days
 
Total
 
0 - 180 days
 
Over 180 days
 
Total
Government
 
25,812

 
13,036

 
38,848

 
27,622

 
7,864

 
35,486

Commercial
 
117,699

 
35,302

 
153,001

 
122,661

 
26,975

 
149,636

Patient
 
4,899

 
10,562

 
15,461

 
2,792

 
2,110

 
4,902

Gross accounts receivable
 
148,410

 
58,900

 
207,310

 
153,075

 
36,949

 
190,024

Allowance for doubtful accounts
 
 
 
 
 
(66,500
)
 
 
 
 
 
(17,836
)
Net accounts receivable
 
 
 
 
 
140,810

 
 
 
 
 
172,188



Estimated useful lives of assets
Property and equipment is stated at cost less accumulated depreciation. Depreciation is calculated using the straight-line method over the estimated useful lives of assets as follows:
Asset
 
Useful Life
Computer hardware and software
 
3
years
 -
5
years
Office equipment
 

 
 
5
years
Vehicles
 
4
years
 -
5
years
Medical equipment
 
13
months
 -
5
years
Furniture and fixtures
 

 
 
5
years
Computation of basic and diluted income (loss) per common share
The following table sets forth the computation of basic and diluted income (loss) per common share (in thousands, except for per share amounts):
 
Year Ended December 31,
 
2014
 
2013
 
2012
Numerator:
 
 
 
 
 
Loss from continuing operations, net of income taxes
$
(143,382
)
 
$
(56,991
)
 
$
(12,275
)
Income from discontinued operations, net of income taxes
(4,086
)
 
(12,663
)
 
76,982

Net income (loss)
$
(147,468
)
 
$
(69,654
)
 
$
64,707

Denominator - Basic and Diluted:
 
 
 
 
 
Weighted average number of common shares outstanding
68,476

 
64,560

 
56,239

Earnings Per Common Share:
 
 
 
 
 
Loss from continuing operations, basic and diluted
$
(2.09
)
 
$
(0.89
)
 
$
(0.22
)
Income (loss) from discontinued operations, basic and diluted
(0.06
)
 
(0.19
)
 
1.37

Income (loss) per common share, basic and diluted
$
(2.15
)
 
$
(1.08
)
 
$
1.15