Financing Arrangements (Details) - USD ($) $ in Thousands	Jan. 30, 2015	Sep. 30, 2023	Apr. 05, 2023	Dec. 31, 2022
Financing Arrangements
Long-term finance lease obligation		$ 44,070		$ 45,185
Long-term restricted cash		6,650		$ 752
Sale leaseback obligation
Financing Arrangements
Long-term finance lease obligation		45,500
Security deposit		5,900
Beverly Property Owner LLC | Building
Financing Arrangements
Proceeds from sale of corporate headquarters	$ 48,900
Lease term	22 years
Silicon Valley Bank | Revolving credit facility
Financing Arrangements
Maximum borrowing capacity under the credit facility			$ 40,000
Silicon Valley Bank | Sale leaseback obligation | Letter of credit
Financing Arrangements
Long-term restricted cash		$ 5,900