Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Statement of Financial Position [Abstract]
Short-term investments	$ 2,639	$ 2,658
Allowance for doubtful accounts	10,061	11,168
Short-term finance receivables allowance	12,024	12,812
Long-term finance receivables allowance	13,207	13,406
Other assets, fair value	$ 281,811	$ 318,754
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	480,000	480,000
Common stock, shares issued (in shares)	323,338	323,338
Treasury stock (in shares)	149,929	148,607