Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018
Statement of Financial Position [Abstract]
Loans held-for-sale, fair value	$ 18,981	$ 19,185	$ 5,061
Common stock, par value	$ 0.01	$ 0.01	$ 0.01
Common stock, shares authorized	200,000,000	200,000,000	200,000,000
Common stock, shares issued	135,809,224	67,753,133	67,669,658
Treasury stock, shares	929,441	467,811	491,170