Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Operating activities:
Net income	$ 47,452	$ 34,355
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	336	201
Provision for loan losses	3,021	1,072
Gain on sale of loans	(27,548)	(27,813)
Proceeds from sales of loans	13,387,330	14,380,078
Loans and participations originated and purchased for sale	(13,374,161)	(14,394,235)
Change in mortgage servicing rights for paydowns and fair value adjustments	1,854	4,602
Net change in:
Trading securities	66,721	16,315
Other assets and receivables	(4,718)	11,504
Other liabilities	3,441	4,869
Other	1,050	721
Net cash provided by operating activities	104,778	31,669
Investing activities:
Net change in securities purchased under agreements to resell	130	(1,688)
Purchases of available-for-sale securities	(36,284)	(148,233)
Proceeds from the sale of available-for-sale securities	6,431
Proceeds from calls, maturities and paydowns of available-for-sale securities	171,319	43,779
Purchases of loans	(112,219)	(101,227)
Net change in loans receivable	(403,900)	(166,634)
Purchase of Federal Home Loan Bank stock	(233)
Proceeds from sale of Federal Home Loan Bank stock	218
Proceeds from sale of assets	10
Purchases of premises and equipment	(5,440)	(754)
Purchases of mortgage servicing rights	(790)	(1,209)
Purchase of limited partnership interests	(3,005)	(1,845)
Cash received in acquisition of subsidiary	6,505	363
Other investing activities	(74)	111
Net cash used in investing activities	(377,332)	(377,337)
Financing activities:
Net change in deposits	321,931	472,843
Proceeds from Federal Home Loan Bank advances	536,367	464,250
Repayment of Federal Home Loan Bank advances	(536,379)	(464,632)
Proceeds from notes payable	9,534
Dividends	(7,662)	(5,684)
Net cash provided by financing activities	323,791	466,777
Net Change in Cash and Cash Equivalents	51,237	121,109
Cash and Cash Equivalents, Beginning of Period	359,519	445,701
Cash and Cash Equivalents, End of Period	410,756	566,810
Additional Cash Flows Information:
Interest paid	31,694	19,258
Income taxes paid	13,023	17,225
The Company purchased all of the capital stock of Joy State Bank on January 2, 2018 and purchased all of the capital stock for RICHMAC on August 15, 2017. In conjunction with the acquisitions, liabilities were assumed as follows:
Fair value of assets acquired	44,217	12,666
Cash paid for the capital stock/fair value common stock issued	5,472	8,127
Fair value of liabilities assumed	$ 38,745	$ 4,539