Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2016

Fair Value Disclosures [Abstract]

Financial Asset and Liabilities Measured at Fair Value on Recurring Basis

	June 30, 2016
(Dollars in thousands)	Level 1		Level 2		Level 3		Total
Assets
Securities available for sale	$	—	$	2,766,015	$	—	$	2,766,015
Mortgage loans held for sale	—		229,653		—		229,653
Derivative instruments	—		61,598		—		61,598
Total	$	—	$	3,057,266	$	—	$	3,057,266
Liabilities
Derivative instruments	$	—	$	64,907	$	—	$	64,907
Total	$	—	$	64,907	$	—	$	64,907

	December 31, 2015
(Dollars in thousands)	Level 1		Level 2		Level 3		Total
Assets
Securities available for sale	$	—	$	2,800,286	$	—	$	2,800,286
Mortgage loans held for sale	—		166,247		—		166,247
Derivative instruments	—		30,486		—		30,486
Total	$	—	$	2,997,019	$	—	$	2,997,019
Liabilities
Derivative instruments	$	—	$	24,939	$	—	$	24,939
Total	$	—	$	24,939	$	—	$	24,939

Financial Asset and Liabilities Measured at Fair Value on Nonrecurring Basis

The Company has segregated all financial assets and liabilities that are measured at fair value on a non-recurring basis into the most appropriate level within the fair value hierarchy based on the inputs used to determine the fair value at the measurement date in the tables below.

	June 30, 2016
(Dollars in thousands)	Level 1		Level 2		Level 3		Total
Assets
Loans	$	—	$	—	$	39,122	$	39,122
OREO, net	—		—		433		433
Total	$	—	$	—	$	39,555	$	39,555

	December 31, 2015
(Dollars in thousands)	Level 1		Level 2		Level 3		Total
Assets
Loans	$	—	$	—	$	31,669	$	31,669
OREO, net	—		—		1,106		1,106
Total	$	—	$	—	$	32,775	$	32,775

Summary of Difference Between the Aggregate Fair Value and the Aggregate Unpaid Principal Balance for Mortgage Loans Held for Sale

The following table summarizes the difference between the aggregate fair value and the aggregate unpaid principal balance for mortgage loans held for sale measured at fair value:

	June 30, 2016						December 31, 2015
(Dollars in thousands)	Aggregate Fair Value		Aggregate Unpaid Principal		Aggregate Fair Value Less Unpaid Principal		Aggregate Fair Value		Aggregate Unpaid Principal		Aggregate Fair Value Less Unpaid Principal
Mortgage loans held for sale, at fair value	$	229,653	$	219,967	$	9,686	$	166,247	$	161,083	$	5,164