Condensed Consolidated Statements of Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Revenues
Gains from mortgage banking activities	$ 42,931	$ 19,802
Servicing fees	21,141	9,379
Net warehouse interest income	1,623	937
Escrow earnings and other interest income	942	539
Other	2,548	3,745
Total revenues	69,185	34,402
Expenses
Personnel	28,283	11,641
Amortization and depreciation	17,256	7,241
Amortization of intangible assets	1,296	18
Provision for risk-sharing obligations	401	1,224
Interest expense on corporate debt	968	168
Other operating expenses	8,651	4,616
Total expenses	56,855	24,908
Income from operations	12,330	9,494
Income tax expense	4,604	3,655
Net income	$ 7,726	$ 5,839
Basic earnings per share (in dollars per share)	$ 0.23	$ 0.27
Diluted earnings per share (in dollars per share)	$ 0.23	$ 0.27
Basic weighted average shares outstanding (in shares)	33,570,130	21,750,573
Diluted weighted average shares outstanding (in shares)	34,156,760	21,848,280