Fair Value Measurement - Summary of Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	$ 433,409	$ 457,126
Level 1
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	(2,315)	(366)
Level 2
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	435,724	457,492
Level 3
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	0	0
Commercial paper
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	109,019	116,902
Commercial paper | Level 1
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	0	0
Commercial paper | Level 2
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	109,019	116,902
Commercial paper | Level 3
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	0	0
Corporate bonds
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	325,884	329,777
Corporate bonds | Level 1
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	0	0
Corporate bonds | Level 2
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	325,884	329,777
Corporate bonds | Level 3
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	0	0
Municipal bonds
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	11,800	11,906
Municipal bonds | Level 1
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	0	0
Municipal bonds | Level 2
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	11,800	11,906
Municipal bonds | Level 3
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	0	0
Commodity contract derivatives
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	(13,294)	(1,459)
Commodity contract derivatives | Level 1
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	(2,315)	(366)
Commodity contract derivatives | Level 2
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	(10,979)	(1,093)
Commodity contract derivatives | Level 3
Assets (liabilities) measured at fair value
Assets (liabilities), fair value	$ 0	$ 0