Income Tax (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Income Tax Disclosure [Abstract]
Income Tax Examination, Penalties and Interest Expense									$ 57	$ 309	$ 0
Current
Federal taxes									(9,338)	18,055	8,673
State taxes									(403)	1,887	2,380
Foreign taxes									374	262	252
Total current taxes									(9,367)	20,204	11,305
Deferred
Federal taxes									10,474	(9,804)	(2,894)
State taxes									(100)	(1,771)	(897)
Foreign taxes									(344)	(297)	(193)
Total deferred taxes									10,030	(11,872)	(3,984)
Provision for income taxes	$ (7,570)	$ 1,141	$ 4,168	$ 2,924	$ 1,673	$ 1,452	$ 2,552	$ 2,655	$ 663	$ 8,332	$ 7,321