Intangible Assets (Activity for Capitalized MSRs) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Capitalized MSRs [Roll Forward]
Balance at beginning of period	$ 33,080
Amortization	(1,825)	(695)
Balance at end of period	31,655	12,872
Mortgage servicing rights [Member]
Capitalized MSRs [Roll Forward]
Balance at beginning of period	12,217	3,423
Additions	400	143
Amortization	(1,034)	(250)
Balance at end of period	$ 11,583	$ 3,316