XML 28 R12.htm IDEA: XBRL DOCUMENT
v3.20.4

Short-term and long-term investments | 12 Months Ended
--- | ---
Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract] |
Investments in Debt and Equity Securities | Short-term and long-term investments The Company’s short-term and long-term investments, consisting of debt instruments classified as held-to-maturity and equity investments with readily determinable fair values or redemption values, were as follows:
| December 31, 2020 |  | December 31, 2019
| Debt securities |  | Equity securities |  | Total |  | Debt securities |  | Equity securities |  | Total
Certificates of deposit and other time deposits | $ | 8,217 |  |  | $ | — |  |  | $ | 8,217 |  |  | $ | 8,140 |  |  | $ | — |  |  | $ | 8,140 |
Investments in mutual funds and common stock | — |  |  | 44,077 |  |  | 44,077 |  |  | — |  |  | 39,951 |  |  | 39,951 |
| $ | 8,217 |  |  | $ | 44,077 |  |  | $ | 52,294 |  |  | $ | 8,140 |  |  | $ | 39,951 |  |  | $ | 48,091 |
Short-term investments | $ | 8,217 |  |  | $ | 11,884 |  |  | $ | 20,101 |  |  | $ | 8,140 |  |  | $ | 3,432 |  |  | $ | 11,572 |
Long-term investments | — |  |  | 32,193 |  |  | 32,193 |  |  | — |  |  | 36,519 |  |  | 36,519 |
| $ | 8,217 |  |  | $ | 44,077 |  |  | $ | 52,294 |  |  | $ | 8,140 |  |  | $ | 39,951 |  |  | $ | 48,091 |
Debt securities: The Company's short-term debt investments are principally bank certificates of deposit with contractual maturities longer than three months but shorter than one year. These debt securities are accounted for as held-to-maturity and recorded at amortized cost, which approximated their fair values at December 31, 2020 and 2019. Equity securities: The Company's equity investments in mutual funds and common stock are held within a trust to fund existing obligations associated with several of the Company’s non-qualified deferred compensation plans. During 2020, the Company recognized pre-tax net gains of $3,818 in other income associated with changes in the fair value of these equity securities, comprised of pre-tax realized gains of $1,941 and a net increase in unrealized gains of $1,877. During 2019, the Company recognized pre-tax net gains of $4,383 in other income associated with changes in the fair value of these equity securities, comprised of pre-tax realized gains of $1,459 and a net increase in unrealized gains of $2,924.

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