Intangible Assets and Goodwill - Schedule of Changes in Goodwill (Details) $ in Thousands	6 Months Ended
Jun. 30, 2021 USD ($)
Changes to goodwill
Beginning Balance	$ 175,835
Purchase price adjustments	133
Effect of changes in foreign currency exchange rates	93
Ending Balance	176,061
Total Real Estate
Changes to goodwill
Beginning Balance	157,202
Purchase price adjustments	133
Effect of changes in foreign currency exchange rates	93
Ending Balance	157,428
Mortgage
Changes to goodwill
Beginning Balance	18,633
Ending Balance	$ 18,633

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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