Investments - Narrative (Details) $ / shares in Units, $ in Millions	Mar. 31, 2024 USD ($)	Jan. 05, 2024 $ / shares shares	Dec. 31, 2023 USD ($)	Oct. 06, 2023 $ / shares shares	Oct. 04, 2023 tranche shares
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Technology investments	$ 133.9		$ 128.0
Long-term Investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Technology investments	130.4		124.6
Short-Term Investments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Technology investments	$ 3.5		$ 3.4
VOXX International Corporation
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of tranches | tranche					2
VOXX International Corporation | Common Class A
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Number of shares acquired (in shares) | shares		1,568,750		1,568,750	3,137,500
Shares purchased, price per share (in dollars per share) | $ / shares		$ 10		$ 10