XML 20 R10.htm IDEA: XBRL DOCUMENT v3.21.1

Marketable Investment Securities

3 Months Ended

Mar. 31, 2021

Investments, Debt and Equity Securities [Abstract]

Marketable Investment Securities

MARKETABLE INVESTMENT SECURITIES

The amortized cost, gross unrealized holding gains, gross unrealized holding losses, and fair value for available-for-sale securities by major security type and class of security at March 31, 2021 and December 31, 2020 were as follows:

(in millions)			Amortized cost						Gross unrealized holding gains						Gross unrealized holding losses						Estimated fair value
March 31, 2021:
Cash and cash equivalents:
Cash			$	65.9					$	—					$	—					$	65.9
Cash equivalents			83.0						—						—						83.0
Total cash and cash equivalents			148.9						—						—						148.9
Available-for-sale:
Corporate bonds and notes			22.7						0.4						—						23.1
Municipal bonds			8.2						0.1						—						8.3
Federal agency issues			4.0						—						—						4.0
US government securities			3.7						—						—						3.7
Total			$	187.5					$	0.5					$	—					$	188.0

(in millions)			Amortized cost						Gross unrealized holding gains						Gross unrealized holding losses						Estimated fair value
December 31, 2020:
Cash and cash equivalents:
Cash			$	47.9					$	—					$	—					$	47.9
Cash equivalents			69.1						—						—						69.1
Total cash and cash equivalents			117.0						—						—						117.0
Available-for-sale:
Corporate bonds and notes			28.8						0.5						—						29.3
Municipal bonds			9.4						0.2						—						9.6
Federal agency issues			4.0						—						—						4.0
US government securities			11.7						0.1						—						11.8
Total			$	170.9					$	0.8					$	—					$	171.7

Cash, cash equivalents, and maturities of debt securities classified as available-for-sale securities were as follows at March 31, 2021:

(in millions)			Amortized cost						Estimated fair value
Cash			$	65.9					$	65.9
Cash equivalents			83.0						83.0
Available-for-sale:
Due within one year			26.9						27.2
Due after one year through five years			11.7						11.9
Due after five years			—						—
Total			$	187.5					$	188.0

There were no debt securities classified as available-for-sale in a gross unrealized loss position as of March 31, 2021 or December 31, 2020.

Additional information relating to fair value of marketable investment securities can be found in Note 4.

X

- References

No definition available.

+ Details

Name:	us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The entire disclosure for investments in certain debt and equity securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 320
-URI http://asc.fasb.org/subtopic&trid=2209399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 320
-URI http://asc.fasb.org/subtopic&trid=2324412

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-URI http://asc.fasb.org/topic&trid=2196928

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 940
-SubTopic 320
-URI http://asc.fasb.org/subtopic&trid=2176304

+ Details

Name:	us-gaap_InvestmentsInDebtAndMarketableEquitySecuritiesAndCertainTradingAssetsDisclosureTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration