Quarterly report pursuant to Section 13 or 15(d)

Short-Term And Long-Term Investments And Restricted Deposits

v2.4.0.8
Short-Term And Long-Term Investments And Restricted Deposits
 9 Months Ended
Sep. 30, 2013
Investments, Debt and Equity Securities [Abstract]  
Short-Term And Long-Term Investments And Restricted Deposits
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



The Company’s investments are classified as available-for-sale with the exception of life insurance contracts and certain cost and equity method investments.  The Company’s investment policies are designed to provide liquidity, preserve capital and maximize total return on invested assets with the focus on high credit quality securities.  The Company limits the size of investment in any single issuer other than U.S. treasury securities and obligations of U.S. government corporations and agencies.  As of September 30, 2013, 47% of the Company’s investments in securities recorded at fair value that carry a rating by S&P or Moody’s were rated AAA/Aaa, 66% were rated AA-/Aa3 or higher, and 94% were rated A-/A3 or higher.  At September 30, 2013, the Company held certificates of deposit, life insurance contracts and cost and equity method investments which did not carry a credit rating.

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



As of September 30, 2013, the gross unrealized losses were generated from 89 positions out of a total of 356 positions.  The decline in fair value of fixed income securities is a result of movement in interest rates subsequent to the purchase of the security.

For each security in an unrealized loss position, the Company assesses whether it intends to sell the security or if it is more likely than not the Company will be required to sell the security before recovery of the amortized cost basis for reasons such as liquidity, contractual or regulatory purposes.  If the security meets this criterion, the decline in fair value is other-than-temporary and is recorded in earnings.  The Company does not intend to sell these securities prior to maturity and it is not likely that the Company will be required to sell these securities prior to maturity; therefore, there is no indication of other than temporary impairment for these securities.

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


 
Actual maturities may differ from contractual maturities due to call or prepayment options.  Asset backed securities are included in the one year through five years category, while cost and equity method investments and life insurance contracts are included in the five years through ten years category.  The Company has an option to redeem at amortized cost substantially all of the securities included in the greater than ten years category listed above.

The Company continuously monitors investments for other-than-temporary impairment.  Certain investments have experienced a decline in fair value due to changes in credit quality, market interest rates and/or general economic conditions.  The Company recognizes an impairment loss for cost and equity method investments when evidence demonstrates that it is other-than-temporarily impaired.  Evidence of a loss in value that is other-than-temporary may include the absence of an ability to recover the carrying amount of the investment or the inability of the investee to sustain a level of earnings that would justify the carrying amount of the investment.

Investment amortization of $7,612 and $8,676 was recorded in the nine months ended September 30, 2013 and 2012, respectively.