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Income Taxes (Tables)
12 Months Ended
Dec. 31, 2014
Income Tax Disclosure [Abstract]  
Income before income taxes by geographic area
Income before income taxes by geographic area was as follows:
 
 
Year Ended December 31,
 
 
2014
 
2013
 
2012
 
 
(In thousands)
Domestic
 
$
174,964

 
$
176,156

 
$
153,292

Foreign
 
(10,564
)
 
15,739

 
7,443

Total income before income taxes
 
$
164,400

 
$
191,895

 
$
160,735

Federal, state and foreign income taxes
Federal, state and foreign income taxes were as follows:
 
 
Year Ended December 31,
 
 
2014
 
2013
 
2012
 
 
(In thousands)
Federal:
 
 
 
 
 
 
Current
 
$
49,590

 
$
44,785

 
$
38,129

Deferred
 
22,549

 
19,773

 
14,926

State:
 
 
 
 
 
 
Current
 
4,849

 
4,231

 
3,956

Deferred
 
727

 
2,026

 
1,783

Foreign:
 
 
 
 
 
 
Current
 
4,638

 
6,475

 
1,947

Deferred
 
(10,957
)
 
613

 
(215
)
Provision for income taxes
 
$
71,396

 
$
77,903

 
$
60,526

Difference between the income tax computation by the company and the statutory body
Actual income tax expense differed from income tax expense computed by applying the U.S. federal statutory corporate tax rate of 35% to income before income taxes in 2014, 2013 and 2012 as follows:
 
 
Year Ended December 31,
 
 
2014
 
2013
 
2012
 
 
(In thousands)
Provision at the U.S. federal statutory rate
 
$
57,540

 
$
67,163

 
$
56,257

Increase (decrease) resulting from:
 
 
 
 
 
 
State income tax, net of benefit for federal deduction
 
5,267

 
4,228

 
3,455

Foreign income tax rate differential
 
(3,188
)
 
(538
)
 
(854
)
Employment credits
 
(481
)
 
(421
)
 
(291
)
Changes in valuation allowances
 
9,507

 
2,713

 
183

Non-deductible goodwill
 

 
1,355

 

Deductible goodwill
 
(10,209
)
 

 

Non-deductible transaction costs
 

 
1,064

 

Stock-based compensation
 
245

 
282

 
201

Convertible debt redemption
 
9,727

 

 

Other
 
2,988

 
2,057

 
1,575

Provision for income taxes
 
$
71,396

 
$
77,903

 
$
60,526

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
The tax effects of these temporary differences representing deferred tax assets/liabilities resulted principally from the following:
 
 
December 31,
 
 
2014
 
2013
 
 
(In thousands)
Deferred tax assets:
 
 
 
 
Loss reserves and accruals
 
$
50,158

 
$
43,451

Interest rate swaps
 
10,745

 
8,310

Convertible note hedge on 3.00% Notes
 

 
12,547

Convertible note hedge on 2.25% Notes
 

 
6,639

U.S. state net operating loss (“NOL”) carryforwards
 
16,592

 
14,231

Foreign NOL carryforwards
 
21,770

 
13,056

Deferred tax assets
 
99,265

 
98,234

Valuation allowance on deferred tax assets
 
(40,486
)
 
(28,310
)
Net deferred tax assets
 
$
58,779

 
$
69,924

Deferred tax liabilities:
 
 
 
 
Goodwill and intangible franchise rights
 
$
(138,992
)
 
$
(141,384
)
Depreciation expense
 
(43,070
)
 
(39,285
)
Discount on 3.00% Notes
 

 
(10,483
)
Discount on 2.25% Notes
 

 
(7,846
)
Deferred gain on bond redemption
 
(2,046
)
 

Other
 
(1,936
)
 
(999
)
Deferred tax liabilities
 
(186,044
)
 
(199,997
)
Net deferred tax liability
 
$
(127,265
)
 
$
(130,073
)