XML 95 R31.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Investments (Tables)
 12 Months Ended
Dec. 31, 2019
Investments Debt And Equity Securities [Abstract]  
Schedule of Investments

Investments consist of the following:

 

 

 

 

 

 

 

Gross Unrealized

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Losses

 

 

 

 

 

 

 

Amortized

 

 

 

 

 

 

Less than

 

 

Greater than

 

 

Estimated

 

December 31, 2019

 

Cost

 

 

Gains

 

 

One Year

 

 

One Year

 

 

Fair Value

 

Short-term investments:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Available-for-sale securities:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Corporate debt securities

 

$

144,161

 

 

$

676

 

 

$

—

 

 

$

—

 

 

$

144,837

 

U.S. government and agency debt securities

 

 

112,948

 

 

 

434

 

 

 

(1

)

 

 

(1

)

 

 

113,380

 

International government agency debt securities

 

 

72,753

 

 

 

248

 

 

 

(10

)

 

 

—

 

 

 

72,991

 

Total short-term investments

 

 

329,862

 

 

 

1,358

 

 

 

(11

)

 

 

(1

)

 

 

331,208

 

Long-term investments:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Available-for-sale securities:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Corporate debt securities

 

 

51,070

 

 

 

—

 

 

 

(45

)

 

 

(7

)

 

 

51,018

 

International government agency debt securities

 

 

20,806

 

 

 

—

 

 

 

(18

)

 

 

—

 

 

 

20,788

 

U.S. government and agency debt securities

 

 

4,000

 

 

 

—

 

 

 

(4

)

 

 

—

 

 

 

3,996

 

 

 

 

75,876

 

 

 

—

 

 

 

(67

)

 

 

(7

)

 

$

75,802

 

Held-to-maturity securities:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Certificates of deposit

 

 

1,820

 

 

 

—

 

 

 

—

 

 

 

—

 

 

 

1,820

 

Fixed term deposit account

 

 

1,667

 

 

 

102

 

 

 

—

 

 

 

—

 

 

 

1,769

 

 

 

 

3,487

 

 

 

102

 

 

 

—

 

 

 

—

 

 

 

3,589

 

Total long-term investments

 

 

79,363

 

 

 

102

 

 

 

(67

)

 

 

(7

)

 

 

79,391

 

Total investments

 

$

409,225

 

 

$

1,460

 

 

$

(78

)

 

$

(8

)

 

$

410,599

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

December 31, 2018

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Short-term investments:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Available-for-sale securities:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Corporate debt securities

 

$

120,197

 

 

$

57

 

 

$

(62

)

 

$

(274

)

 

$

119,918

 

U.S. government and agency debt securities

 

 

80,055

 

 

 

115

 

 

 

(11

)

 

 

(87

)

 

 

80,072

 

International government agency debt securities

 

 

72,091

 

 

 

85

 

 

 

(8

)

 

 

(117

)

 

 

72,051

 

 

 

 

272,343

 

 

 

257

 

 

 

(81

)

 

 

(478

)

 

 

272,041

 

Held-to-maturity securities:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Corporate debt securities

 

 

492

 

 

 

—

 

 

 

—

 

 

 

—

 

 

 

492

 

Total short-term investments

 

 

272,835

 

 

 

257

 

 

 

(81

)

 

 

(478

)

 

 

272,533

 

Long-term investments:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Available-for-sale securities:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Corporate debt securities

 

 

53,505

 

 

 

—

 

 

 

(185

)

 

 

(93

)

 

$

53,227

 

U.S. government and agency debt securities

 

 

18,474

 

 

 

—

 

 

 

(21

)

 

 

(12

)

 

 

18,441

 

International government agency debt securities

 

 

5,457

 

 

 

—

 

 

 

(4

)

 

 

—

 

 

 

5,453

 

 

 

 

77,436

 

 

 

—

 

 

 

(210

)

 

 

(105

)

 

 

77,121

 

Held-to-maturity securities:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Certificates of deposit

 

 

1,820

 

 

 

—

 

 

 

—

 

 

 

—

 

 

 

1,820

 

Fixed term deposit account

 

 

1,667

 

 

 

136

 

 

 

—

 

 

 

—

 

 

 

1,803

 

 

 

 

3,487

 

 

 

136

 

 

 

—

 

 

 

—

 

 

 

3,623

 

Total long-term investments

 

 

80,923

 

 

 

136

 

 

 

(210

)

 

 

(105

)

 

 

80,744

 

Total investments

 

$

353,758

 

 

$

393

 

 

$

(291

)

 

$

(583

)

 

$

353,277

 
Schedule of Proceeds From Sales and Maturities of Marketable Securities Plus Resulting Realized Gains and Losses

Realized gains and losses on the sales and maturities of marketable securities, which were identified using the specific identification method, were as follows:

 

 

 

Year Ended December 31,

 

(In thousands)

 

2019

 

 

2018

 

 

2017

 

Proceeds from the sales and maturities of marketable securities

 

$

224,602

 

 

$

444,456

 

 

$

464,494

 

Realized gains

 

$

997

 

 

$

4

 

 

$

9

 

Realized losses

 

$

497

 

 

$

268

 

 

$

3

 
Schedule of Contractual Maturities of Available-for-Sale and Held-to-Maturity Securities

The Company’s available‑for‑sale and held‑to‑maturity securities at December 31, 2019 had contractual maturities in the following periods:

 

 

 

Available-for-sale

 

 

Held-to-maturity

 

 

 

Amortized

 

 

Estimated

 

 

Amortized

 

 

Estimated

 

(In thousands)

 

Cost

 

 

Fair Value

 

 

Cost

 

 

Fair Value

 

Within 1 year

 

$

216,084

 

 

$

216,764

 

 

$

1,820

 

 

$

1,820

 

After 1 year through 5 years

 

 

189,654

 

 

 

190,246

 

 

 

1,667

 

 

 

1,769

 

Total

 

$

405,738

 

 

$

407,010

 

 

$

3,487

 

 

$

3,589