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Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2018
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Mortgage Warehouse Agreement—In April 2018, the Company entered into a new Mortgage Warehouse Agreement with Texas Capital Bank. The Mortgage Warehouse Agreement expires on March 22, 2019 and the terms remain as described in Note 11 to the financial statements.