Note 10 - Fair Value Measurement (Details Textual)	Dec. 31, 2022 USD ($)
IQ Notes [Member]
Notes Payable, Total	$ 36,000,000
IQ Notes [Member] \| Fair Value, Inputs, Level 1 [Member]
Notes Payable, Fair Value Disclosure	$ 35,100,000
IQ Notes [Member] \| Fair Value, Inputs, Level 3 [Member] \| Measurement Input, Annual Yield [Member]
Debt Instrument, Measurement Input	0.0744
Senior Notes [Member]
Notes Payable, Total	$ 470,400,000
Senior Notes [Member] \| Fair Value, Inputs, Level 1 [Member]
Notes Payable, Fair Value Disclosure	$ 471,100,000

Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

Name:	us-gaap_NotesPayable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant