Summary of New Accounting Pronouncements - Additional Information (Details) - USD ($)	Jun. 30, 2021	Jan. 31, 2021	Dec. 31, 2020
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Operating lease right-of-use asset—net	$ 25,823,000	$ 24,600,000
Current portion of operating lease liabilities	7,268,000	7,300,000
Operating lease liability—net of current portion	18,643,000	17,300,000
Finance lease right-of-use asset—net	7,439,000	7,200,000	$ 7,200,000
Current portion of finance lease liabilities	$ 2,966,000	$ 2,900,000
Accounting Standards Update 2019-12
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Change in accounting principle, accounting standards update, adopted	true
Change in accounting principle, accounting standards update, adoption date	Jan. 01, 2021
Change in accounting principle, accounting standards update, immaterial effect	true
Accounting Standards Update 2018-07
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Change in accounting principle, accounting standards update, adopted	true
Change in accounting principle, accounting standards update, adoption date	Jan. 01, 2020
Change in accounting principle, accounting standards update, immaterial effect	true
Accounting Standards Update 2017-04
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Change in accounting principle, accounting standards update, adopted	true
Change in accounting principle, accounting standards update, adoption date	Jan. 01, 2020
Change in accounting principle, accounting standards update, immaterial effect	true
Accounting Standards Update 2016-02
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Change in accounting principle, accounting standards update, adopted	true
Change in accounting principle, accounting standards update, adoption date	Jan. 01, 2021
Operating lease right-of-use asset—net	$ 24,600
Current portion of operating lease liabilities	7,300
Operating lease liability—net of current portion	17,300
Finance lease right-of-use asset—net	7,200
Current portion of finance lease liabilities	2,900
Finance lease liabilities, net of current portion	$ 4,600