Fair Value Measurements and Derivative Instruments (Available-for-sale Securities Maturities) (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Amortized cost
Within 1 year	$ 2,084
After 1 year through 5 years	8,256
After 5 years through 10 years	70,395
After 10 years	157,117
Amortized cost	237,852	$ 247,866
Estimated fair value
Within 1 year	1,858
After 1 year through 5 years	7,760
After 5 years through 10 years	59,563
After 10 years	123,377
Total	$ 192,558	$ 203,842