CONSOLIDATED AND COMBINED STATEMENT OF CHANGES IN EQUITY (UNAUDITED) - 3 months ended Mar. 31, 2016 - USD ($) $ in Thousands		Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance at Dec. 31, 2015		$ 441,642	$ 4	$ 436,697	$ 5,257	$ (316)
Beginning Balance, shares outstanding at Dec. 31, 2015		42,741,995	42,741,995
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		$ 94,283			94,283
Other comprehensive loss		(6,458)				(6,458)
Earnings and profits distribution, shares	[1]		17,085,566
Earnings and profits distribution (1)	[1]	(78,076)	$ 2	(2)	(78,076)
Dividends declared on common stock		(14,509)			(14,509)
Stock-based compensation, net, shares			53,709
Stock-based compensation, net		$ 322		322
Ending Balance, shares outstanding at Mar. 31, 2016		59,881,270	59,881,270
Ending Balance at Mar. 31, 2016		$ 437,204	$ 6	$ 437,017	$ 6,955	$ (6,774)

[1] The earnings and profit distribution is accounted for as a stock split effected in the form of a dividend.