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)
9 Months Ended
Sep. 30, 2013
Investments, Debt and Equity Securities [Abstract]  
Short-Term And Long-Term Investments And Restricted Deposits By Investment Type
Short-term and Long-term Investments and Restricted Deposits

Short-term and long-term investments and restricted deposits by investment type consist of the following:
 
September 30, 2013
 
December 31, 2012
 
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
$
247,051

 
$
308

 
$
(6,196
)
 
$
241,163

 
$
117,434

 
$
594

 
$
(221
)
 
$
117,807

Corporate securities
327,083

 
3,115

 
(650
)
 
329,548

 
315,807

 
5,101

 
(198
)
 
320,710

Restricted certificates of deposit
5,891

 

 

 
5,891

 
5,890

 

 

 
5,890

Restricted cash equivalents
22,608

 

 

 
22,608

 
14,460

 

 

 
14,460

Municipal securities:
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

General obligation
61,101

 
544

 
(169
)
 
61,476

 
88,690

 
1,173

 
(26
)
 
89,837

Pre-refunded
14,329

 
164

 
(1
)
 
14,492

 
5,337

 
85

 

 
5,422

Revenue
76,753

 
534

 
(538
)
 
76,749

 
84,726

 
1,331

 
(30
)
 
86,027

Variable rate demand notes
65,955

 

 

 
65,955

 
37,685

 

 

 
37,685

Asset backed securities
128,343

 
656

 
(256
)
 
128,743

 
83,295

 
1,197

 
(17
)
 
84,475

Cost and equity method investments
18,538

 

 

 
18,538

 
11,298

 

 

 
11,298

Life insurance contracts
15,289

 

 

 
15,289

 
15,023

 

 

 
15,023

Total
$
982,941

 
$
5,321

 
$
(7,810
)
 
$
980,452

 
$
779,645

 
$
9,481

 
$
(492
)
 
$
788,634

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:
 
September 30, 2013
 
December 31, 2012
 
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
$
(6,196
)
 
$
196,888

 
$

 
$

 
$
(219
)
 
$
56,033

 
$
(2
)
 
$
202

Corporate securities
(641
)
 
79,753

 
(9
)
 
42

 
(198
)
 
44,758

 

 

Municipal securities:
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

General obligation
(119
)
 
9,264

 
(50
)
 
2,453

 
(26
)
 
8,464

 

 

Pre-refunded
(1
)
 
489

 

 

 

 

 

 

Revenue
(531
)
 
28,866

 
(7
)
 
1,807

 
(30
)
 
3,325

 

 

Asset backed securities
(256
)
 
35,140

 

 

 
(17
)
 
9,321

 

 

Total
$
(7,744
)
 
$
350,400

 
$
(66
)
 
$
4,302

 
$
(490
)
 
$
121,901

 
$
(2
)
 
$
202

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:
 
September 30, 2013
 
December 31, 2012
 
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
$
121,753

 
$
122,631

 
$
36,600

 
$
36,606

 
$
138,011

 
$
139,118

 
$
34,403

 
$
34,435

One year through five years
588,145

 
589,585

 
4,302

 
4,305

 
474,068

 
481,381

 
358

 
358

Five years through ten years
169,250

 
164,201

 

 

 
94,006

 
93,878

 

 

Greater than ten years
62,891

 
63,124

 

 

 
38,799

 
39,464

 

 

Total
$
942,039

 
$
939,541

 
$
40,902

 
$
40,911

 
$
744,884

 
$
753,841

 
$
34,761

 
$
34,793