Quarterly report pursuant to Section 13 or 15(d)

Short-Term And Long-Term Investments And Restricted Deposits (Tables)

v2.4.0.8
Short-Term And Long-Term Investments And Restricted Deposits (Tables)
6 Months Ended
Jun. 30, 2014
Investments, Debt and Equity Securities [Abstract]  
Short-Term And Long-Term Investments And Restricted Deposits By Investment Type
Short-term and Long-term Investments, Restricted Deposits

Short-term and long-term investments and restricted deposits by investment type consist of the following:
 
June 30, 2014
 
December 31, 2013
 
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized Losses
 
Fair
Value
 
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized Losses
 
Fair
Value
U.S. Treasury securities and obligations of U.S. government corporations and agencies
$
325,602

 
$
424

 
$
(3,349
)
 
$
322,677

 
$
246,085

 
$
245

 
$
(7,494
)
 
$
238,836

Corporate securities
395,427

 
4,087

 
(166
)
 
399,348

 
293,912

 
2,782

 
(608
)
 
296,086

Restricted certificates of deposit
5,892

 

 

 
5,892

 
5,891

 

 

 
5,891

Restricted cash equivalents
57,608

 

 

 
57,608

 
26,642

 

 

 
26,642

Municipal securities:
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

General obligation
38,950

 
480

 
(22
)
 
39,408

 
54,003

 
555

 
(136
)
 
54,422

Pre-refunded
8,486

 
59

 
(10
)
 
8,535

 
10,835

 
82

 

 
10,917

Revenue
68,871

 
571

 
(42
)
 
69,400

 
68,801

 
545

 
(292
)
 
69,054

Variable rate demand notes
18,000

 

 

 
18,000

 
28,575

 

 

 
28,575

Asset backed securities
179,418

 
636

 
(69
)
 
179,985

 
138,803

 
579

 
(332
)
 
139,050

Mortgage backed securities
47,113

 
1,157

 

 
48,270

 
33,974

 

 
(83
)
 
33,891

Cost and equity method investments
38,087

 

 

 
38,087

 
22,239

 

 

 
22,239

Life insurance contracts
15,545

 

 

 
15,545

 
15,369

 

 

 
15,369

Total
$
1,198,999

 
$
7,414

 
$
(3,658
)
 
$
1,202,755

 
$
945,129

 
$
4,788

 
$
(8,945
)
 
$
940,972

Fair Value Of Available-For-Sale Investments With Gross Unrealized Losses By Investment Type And Length Of Time
The fair value of available-for-sale investments with gross unrealized losses by investment type and length of time that individual securities have been in a continuous unrealized loss position were as follows:
 
June 30, 2014
 
December 31, 2013
 
Less Than 12 Months
 
12 Months or More
 
Less Than 12 Months
 
12 Months or More
 
Unrealized Losses
 
Fair
Value
 
Unrealized Losses
 
Fair
Value
 
Unrealized Losses
 
Fair
Value
 
Unrealized Losses
 
Fair
Value
U.S. Treasury securities and obligations of U.S. government corporations and agencies
$
(18
)
 
$
11,987

 
$
(3,331
)
 
$
179,105

 
$
(6,188
)
 
$
172,365

 
$
(1,307
)
 
$
26,454

Corporate securities
(149
)
 
56,343

 
(17
)
 
985

 
(400
)
 
52,725

 
(207
)
 
5,020

Municipal securities:
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

General obligation

 

 
(22
)
 
3,476

 
(72
)
 
3,480

 
(63
)
 
2,426

Pre-refunded
(10
)
 
1,034

 

 

 

 

 

 

Revenue

 

 
(42
)
 
3,413

 
(292
)
 
27,789

 

 

Asset backed securities

 

 

 

 
(333
)
 
37,689

 

 

Mortgage backed securities
(3
)
 
9,969

 
(66
)
 
15,706

 
(83
)
 
33,891

 

 

Total
$
(180
)
 
$
79,333

 
$
(3,478
)
 
$
202,685

 
$
(7,368
)
 
$
327,939

 
$
(1,577
)
 
$
33,900

Contractual Maturities Of Short-Term And Long-Term Investments And Restricted Deposits
The contractual maturities of short-term and long-term investments and restricted deposits are as follows:
 
June 30, 2014
 
December 31, 2013
 
Investments
 
Restricted Deposits
 
Investments
 
Restricted Deposits
 
Amortized
Cost
 
Fair
Value
 
Amortized
Cost
 
Fair
Value
 
Amortized
Cost
 
Fair
Value
 
Amortized
Cost
 
Fair
Value
One year or less
$
126,496

 
$
127,348

 
$
60,665

 
$
60,665

 
$
101,537

 
$
102,126

 
$
40,633

 
$
40,637

One year through five years
855,731

 
859,409

 
17,770

 
17,777

 
609,755

 
610,589

 
6,301

 
6,309

Five years through ten years
118,210

 
116,873

 

 

 
157,003

 
151,221

 

 

Greater than ten years
20,127

 
20,683

 

 

 
29,900

 
30,090

 

 

Total
$
1,120,564

 
$
1,124,313

 
$
78,435

 
$
78,442

 
$
898,195

 
$
894,026

 
$
46,934

 
$
46,946