Note 7 - Goodwill and Other Acquired Intangible Assets, Net Impairment Analysis (Details) - USD ($) $ in Thousands	3 Months Ended						12 Months Ended
	Dec. 31, 2019		Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2017	Dec. 31, 2019		Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Impairment of goodwill	$ 4,828		$ 0	$ 0	$ 0		$ 4,828		$ 0	$ 184,374
Finite-Lived Intangible Assets, Net	18,385						18,385
Mortgage and Real Estate Services Segment
Finite-Lived Intangible Assets [Line Items]
Impairment of goodwill						$ 184,400	4,828		0
Impairment of Intangible Assets, Finite-lived						$ 15,800	13,700		0
Finite-Lived Intangible Assets, Net	18,385	[1]					18,385	[1]	$ 44,906
Held-for-sale | Mortgage and Real Estate Services Segment
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Net	$ 3,700						3,700
Other Intangible Assets | Mortgage and Real Estate Services Segment
Finite-Lived Intangible Assets [Line Items]
Impairment of Intangible Assets, Finite-lived							$ 0

[1] Excludes total gross carrying amount and accumulated amortization (including impairment) related to Clayton of $60.9 million and $57.2 million, respectively, which were reclassified to assets held-for-sale and included in other assets on our consolidated balance sheets at December 31, 2019.