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FAIR VALUE MEASUREMENTS (Tables)
 3 Months Ended
Mar. 31, 2018
Fair Value Disclosures [Abstract]  
Assets Measured at Fair Value on Recurring Basis

The Company’s assets which were measured at fair value on a recurring basis as of March 31, 2018 and December 31, 2017 were determined using the inputs described above and are as follows (in millions):

 

 

 

 

 

 

 

Fair Value Measurements Using

 

 

 

Carrying

Value

 

 

Quoted Prices

in Active

Markets for

Identical Assets

(Level 1)

 

 

Significant

Other

Observable

Inputs

(Level 2)

 

 

Significant

Unobservable

Inputs

(Level 3)

 

March 31, 2018:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Classified as current assets:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cash and money market funds

 

$

147.4

 

 

$

147.4

 

 

$

—

 

 

$

—

 

Commercial paper

 

 

69.9

 

 

 

—

 

 

 

69.9

 

 

 

—

 

Securities of government-sponsored entities

 

 

7.5

 

 

 

—

 

 

 

7.5

 

 

 

—

 

Corporate debt securities

 

 

235.7

 

 

 

—

 

 

 

235.7

 

 

 

—

 

Subtotal

 

 

460.5

 

 

 

147.4

 

 

 

313.1

 

 

 

—

 

Classified as long-term assets:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cash and money market funds

 

 

1.5

 

 

 

1.5

 

 

 

—

 

 

 

—

 

Certificates of deposit

 

 

3.0

 

 

 

3.0

 

 

 

—

 

 

 

—

 

Securities of government-sponsored entities

 

 

10.9

 

 

 

—

 

 

 

10.9

 

 

 

—

 

Corporate debt securities

 

 

265.4

 

 

 

—

 

 

 

265.4

 

 

 

—

 

Total

 

 

741.3

 

 

 

151.9

 

 

 

589.4

 

 

 

—

 

Less cash, cash equivalents and restricted cash

 

 

(179.8

)

 

 

(151.9

)

 

 

(27.9

)

 

 

—

 

Total investments

 

$

561.5

 

 

$

-

 

 

$

561.5

 

 

$

—

 

December 31, 2017:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Classified as current assets:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cash and money market funds

 

$

170.2

 

 

$

170.2

 

 

$

—

 

 

$

—

 

Commercial paper

 

 

159.9

 

 

 

—

 

 

 

159.9

 

 

 

—

 

Securities of government-sponsored entities

 

 

7.5

 

 

 

—

 

 

 

7.5

 

 

 

—

 

Corporate debt securities

 

 

178.4

 

 

 

—

 

 

 

178.4

 

 

 

—

 

Subtotal

 

 

516.0

 

 

 

170.2

 

 

 

345.8

 

 

 

—

 

Classified as long-term assets:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cash and money market funds

 

 

1.5

 

 

 

1.5

 

 

 

—

 

 

 

—

 

Certificates of deposit

 

 

3.0

 

 

 

3.0

 

 

 

—

 

 

 

—

 

Securities of government-sponsored entities

 

 

10.9

 

 

 

—

 

 

 

10.9

 

 

 

—

 

Corporate debt securities

 

 

236.4

 

 

 

—

 

 

 

236.4

 

 

 

—

 

Total

 

 

767.8

 

 

 

174.7

 

 

 

593.1

 

 

 

—

 

Less cash, cash equivalents and restricted cash

 

 

(259.2

)

 

 

(174.6

)

 

 

(84.6

)

 

 

—

 

Total investments

 

$

508.6

 

 

$

0.1

 

 

$

508.5

 

 

$

—