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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2013
Income Tax Disclosure [Abstract]  
Schedule of Components of Income Tax Expense (Benefit)
Following is a summary of the (benefit from) provision for income taxes (in thousands):
Years Ended December 31,
2013
2012
2011
Federal:
 
 
 
Current
$
(1,298
)
$
10,410

$
11,136

Deferred
(18,606
)
9,518

7,914

Total federal 
(19,904
)
19,928

19,050

State:
 

 
 
Current
1,592

4,689

2,952

Deferred
(951
)
(3,508
)
1,346

Total state 
641

1,181

4,298

Total (benefit from) provision for income taxes
$
(19,263
)
$
21,109

$
23,348

Schedule of Effective Income Tax Rate Reconciliation
Following is a reconciliation of our (benefit from) provision for income taxes based on the Federal statutory tax rate to our effective tax rate (dollars in thousands):
Years Ended December 31,
2013
2012
2011
Federal statutory tax
$
(22,411
)
35.0
 %
$
28,360

35.0
 %
$
31,301

35.0
 %
State taxes, net of federal tax benefit
101

(0.2
)
5,299

6.5

3,497

3.9

Valuation allowance release


(5,803
)
(7.2
)


Percentage depletion deduction
(787
)
1.2

(1,422
)
(1.8
)
(1,254
)
(1.4
)
Domestic production deduction 
(27
)
0.1

(1,367
)
(1.7
)
(1,604
)
(1.8
)
Non-controlling interests
2,920

(4.6
)
(5,124
)
(6.3
)
(5,223
)
(5.8
)
Settlements and effective settlements of audit issues




(2,348
)
(2.6
)
Nondeductible expenses
2,384

(3.7
)
1,918

2.4

1,000

1.1

Other
(1,443
)
2.3

(752
)
(0.8
)
(2,021
)
(2.3
)
Total
$
(19,263
)
30.1
 %
$
21,109

26.1
 %
$
23,348

26.1
 %
Schedule of Deferred Tax Assets and Liabilities
The above amounts are reflected in the accompanying consolidated balance sheets as follows (in thousands): 
December 31,
2013
2012
Current deferred tax assets, net
$
55,874

$
36,687

Long-term deferred tax liabilities, net 
7,793

8,163

Net deferred tax assets 
$
48,081

$
28,524

Following is a summary of the deferred tax assets and liabilities (in thousands):
December 31,
2013
2012
Deferred tax assets:
 

 
Receivables
$
2,870

$
2,876

Inventory
4,637

5,611

Insurance
10,813

10,476

Deferred compensation
13,372

14,055

Other accrued liabilities
6,739

7,184

Contract income recognition
11,503

4,171

Impairments on real estate investments 
14,313

5,002

Accrued compensation
7,206

6,064

Other 
420

416

Net operating loss carryforward
4,439

8,359

Valuation allowance
(3,731
)
(5,242
)
Total deferred tax assets 
72,581

58,972

Deferred tax liabilities:
 
 
Property and equipment
24,500

30,448

Total deferred tax liabilities 
24,500

30,448

Net deferred tax assets 
$
48,081

$
28,524


Summary of Valuation Allowance
The following is a summary of the change in valuation allowance (in thousands):
December 31,
2013
2012
2011
Beginning balance
$
5,242

$
10,668

$
13,111

Deductions
(1,511
)
(5,426
)
(2,443
)
Ending balance
$
3,731

$
5,242

$
10,668

Summary of Income Tax Contingencies
The following is a tabular reconciliation of unrecognized tax benefits (in thousands) the balance of which is included in other long-term liabilities on the consolidated balance sheets:
December 31,
2013
2012
2011
Beginning balance
$
2,315

$
2,339

$
5,650

Gross increases – current period tax positions
363

1,017

1,726

Gross decreases – current period tax positions
(638
)
(800
)
(1,420
)
Gross increases – prior period tax positions
508

4

1,485

Gross decreases – prior period tax positions
(2
)
(245
)
(1,467
)
Settlements with taxing authorities/lapse of statute of limitations
(315
)

(3,635
)
Ending balance
$
2,231

$
2,315

$
2,339