Covered Assets and Indemnification Asset - Impaired Loans (Details) - Covered - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Impaired loans
Unpaid Contractual Principal Balance	$ 216,506		$ 233,230
Recorded Investment with No Allowance	8,778		8,023
Recorded Investment with Allowance	77,133		84,472
Total Recorded Investment	85,911		92,495
Related Allowance	2,795		2,697
Average investment in covered impaired loans
Average investment	89,203	$ 130,122
Non-accrual loans
Non-accrual loans	5,849		5,104
Interest income recorded	200	100
Secured
Average investment in covered impaired loans
Average investment	167	1,023
Unsecured
Average investment in covered impaired loans
Average investment		236
Secured by Commercial Properties
Average investment in covered impaired loans
Average investment	20,635	48,965
Secured by Residential Properties
Average investment in covered impaired loans
Average investment	68,388	75,983
Non-accrual loans
Non-accrual loans	5,839		5,087
Commercial construction loans and land development
Average investment in covered impaired loans
Average investment	13	$ 3,915
Non-accrual loans
Non-accrual loans	10		17
PCI loans
Impaired loans
Unpaid Contractual Principal Balance	209,269		226,889
Recorded Investment with No Allowance	2,652		2,641
Recorded Investment with Allowance	77,133		84,472
Total Recorded Investment	79,785		87,113
Related Allowance	2,795		2,697
PCI loans \| Secured
Impaired loans
Unpaid Contractual Principal Balance	3,568		3,783
Recorded Investment with Allowance	140		194
Total Recorded Investment	140		194
Related Allowance	40		19
PCI loans \| Unsecured
Impaired loans
Unpaid Contractual Principal Balance	5,583		5,732
PCI loans \| Secured by Commercial Properties
Impaired loans
Unpaid Contractual Principal Balance	66,886		80,223
Recorded Investment with No Allowance	2,421		2,388
Recorded Investment with Allowance	15,290		21,171
Total Recorded Investment	17,711		23,559
Related Allowance	1,324		1,817
PCI loans \| Secured by Residential Properties
Impaired loans
Unpaid Contractual Principal Balance	121,757		125,361
Recorded Investment with No Allowance	227		249
Recorded Investment with Allowance	61,703		63,107
Total Recorded Investment	61,930		63,356
Related Allowance	1,431		861
PCI loans \| Residential Construction Loans
Impaired loans
Unpaid Contractual Principal Balance	664		672
PCI loans \| Commercial construction loans and land development
Impaired loans
Unpaid Contractual Principal Balance	10,811		11,118
Recorded Investment with No Allowance	4		4
Total Recorded Investment	4		4
Loans excluding PCI Loans
Impaired loans
Unpaid Contractual Principal Balance	7,237		6,341
Recorded Investment with No Allowance	6,126		5,382
Total Recorded Investment	6,126		5,382
Loans excluding PCI Loans \| Secured
Impaired loans
Unpaid Contractual Principal Balance	44		44
Loans excluding PCI Loans \| Secured by Residential Properties
Impaired loans
Unpaid Contractual Principal Balance	7,183		6,279
Recorded Investment with No Allowance	6,120		5,370
Total Recorded Investment	6,120		5,370
Loans excluding PCI Loans \| Commercial construction loans and land development
Impaired loans
Unpaid Contractual Principal Balance	10		18
Recorded Investment with No Allowance	6		12
Total Recorded Investment	$ 6		$ 12

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Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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