Condensed Consolidated Statement of Stockholders' Equity - 3 months ended Mar. 31, 2016 - USD ($) $ in Thousands	Additional paid-in capital	Common Stock Class A common stock	Common Stock Class B common stock	Retained earnings Class A common stock	Retained earnings	Accumulated other comprehensive (loss), net of tax	Non-controlling interest	Class A common stock	Class B common stock	Total
Beginning balance, Value at Dec. 31, 2015	$ 445,081	$ 2			$ 4,693	$ (105)	$ (410,257)			$ 39,414
Beginning balance, Shares at Dec. 31, 2015		17,584,351	1					17,584,351	1
Net income					4,940		5,456			10,396
Distributions paid and payable to non-controlling unitholders							(4,887)			(4,887)
Equity-based compensation expense	766									766
Dividends to Class A common stockholders				$ 2,638				$ 2,638
Change in accumulated other comprehensive income (loss)						263	301			564
Ending balance, Value at Mar. 31, 2016	445,970	$ 2			6,951	$ 158	(409,438)			43,643
Ending balance, Shares at Mar. 31, 2016		17,584,351	1					17,584,351	1
Cumulative effect adjustment from change in accounting principle	$ 123				$ (44)		$ (51)			$ 28