Consolidated Statements of Equity (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common stock	Additional paid-in capital	Retained earnings/(accumulated deficit)
Beginning balance at Jun. 07, 2012	$ 0	$ 0	$ 0	$ 0
Beginning balance, shares at Jun. 07, 2012		0
Increase (Decrease) in Stockholders' Equity
Issuance of common stock, shares		0
Issuance of common stock, including stock option exercises	500	0	500
Ending balance at Jun. 30, 2012	500	0	500	0
Ending balance, shares at Jun. 30, 2012		0
Beginning balance at Dec. 31, 2012	99,911	78	99,922	(89)
Beginning balance, shares at Dec. 31, 2012	7,810,708	7,810,708
Increase (Decrease) in Stockholders' Equity
Issuance of common stock, shares		17,256,496
Issuance of common stock, including stock option exercises	323,427	173	323,254
Cost of issuance of common stock	(13,934)		(13,934)
Shared-based compensation	98		98
Net income	4,243			4,243
Ending balance at Jun. 30, 2013	$ 413,745	$ 251	$ 409,340	$ 4,154
Ending balance, shares at Jun. 30, 2013	25,067,204	25,067,204