Organization (Details) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	0 Months Ended	12 Months Ended	0 Months Ended					1 Months Ended	7 Months Ended
	Oct. 11, 2012	Dec. 31, 2012	Nov. 13, 2013 Common Stock [Member]	Jul. 05, 2013 Common Stock [Member]	Jun. 24, 2013 Common Stock [Member]	Jul. 05, 2013 Common Stock [Member]	Oct. 17, 2012 Common Stock [Member]	Aug. 31, 2013 Common Stock [Member]	Jul. 31, 2013 Common Stock [Member]	Dec. 31, 2013 Senior Unsecured Notes due 2021 [Member] Senior Notes [Member]	Sep. 18, 2013 Senior Unsecured Notes due 2021 [Member] Senior Notes [Member]
Initial Public Offering [Line Items]
Deferred recognized at date of Merger - change in tax status of Predecessors		$ 54,142,000
Shares issued upon public offering							14,375	4,600	5,175
Common stock issued pursuant to underwriters over allotment option							1,875	600	675
Stock price per share at public offering	$ 17.50						$ 17.50	$ 40.25	$ 29.25
Net proceeds received from public offering							234,100,000	177,500,000	144,439,000
Shares sold in secondary public offering			2,000		6,000
Shares sold by existing stockholders				869
Stock price per share, selling stockholders			$ 53.46			$ 34.75
Aggregate principal amount											$ 450,000,000
Stated interest rate										7.625%	7.625%