Earnings Per Common Share Schedule of Weighted Average Number of Shares (Details) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]
Potential issuable common shares used to calculate weighted average share equivalents	1,063	1,063	1,400
Earnings Per Share [Abstract]
Anti-dilutive shares	319	105	143
Weighted average basic shares outstanding
Weighted average shares—Basic	55,305	53,788	42,693
Class A Common Stock offering [Member]
Weighted average basic shares outstanding
Weighted average shares—Basic	3,791	3,791	1,067
Settlement of the prepaid stock purchase contract component of the TEUs [Member]
Weighted average basic shares outstanding
Weighted average shares—Basic	2,842	2,842	851
Conversion of Series A-1 Preferred Stock [Member]
Weighted average basic shares outstanding
Weighted average shares—Basic	5,984	5,263	0