Note 14. Commitments And Contingencies Escrow and Trust Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Loss Contingencies [Line Items]
Escrow and trust deposits	$ 415,000	$ 308,000
Maximum [Member]
Loss Contingencies [Line Items]
Cash, FDIC Insured Amount	$ 250

The aggregate amount of all domestic and foreign noninterest-bearing deposits liabilities held by the entity.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.12)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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