Income Taxes - Significant Components of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Lease liabilities	$ 40,389	$ 35,801
Research and development credits	13,332	9,637
Accrued expenses	13,260	15,611
Provision for doubtful accounts and implicit price concessions	12,154	13,291
Deferred benefit plan compensation	8,316	11,199
Net operating loss carryforwards	7,714	8,907
Inventory reserves	3,425	2,945
Share-based compensation	2,998	3,437
Refund liabilities	2,169	2,518
Other	2,857	3,378
Deferred tax assets	106,614	106,724
Less: Valuation allowance	(2,075)	(2,112)
Total deferred tax assets	104,539	104,612
Deferred tax liabilities:
Lease assets	37,095	32,069
Goodwill	12,116	9,368
Property, plant, and equipment	6,731	7,198
Prepaid expenses	3,103	1,100
Total deferred tax liabilities	59,045	49,735
Net deferred tax assets	$ 45,494	$ 54,877