UNAUDITED CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN EQUITY AND REDEEMABLE NONCONTROLLING INTERESTS - 9 months ended Dec. 31, 2015 - USD ($) $ in Thousands	Total	Redeemable Noncontrolling Interests	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Noncontrolling Interests	Total Stockholders' Investment
Redeemable noncontrolling interest, beginning balance at Mar. 31, 2015		$ 26,223
Stockholders' equity, beginning balance at Mar. 31, 2015	$ 1,618,786		$ 376	$ 781,837	$ 1,284,442	$ (270,329)	$ (184,796)	$ 7,256	$ 1,618,786
Common stock, shares, beginning balance at Mar. 31, 2015	34,838,374		34,838,374
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common stock, value		0	$ 1	14,683	0	0	0	0	14,684
Issuance of common stock, shares			106,558
Acquisition of noncontrolling interests		(5,467)	$ 0	(1,844)	0	0	0	0	(1,844)
Distributions paid to noncontrolling interests		0	0	0	0	0	0	(42)	(42)
Dividends paid to noncontrolling interest	$ (153)	0	0	0	(153)	0	0	0	(153)
Common stock dividends		0	0	0	(35,627)	0	0	0	(35,627)
Currency translation adjustments	34	(426)	0	0	0	0	0	392	392
Net income (loss)	(43,741)	3,046	0	0	(47,187)	0	0	400	(46,787)
Accretion of redeemable noncontrolling interests		(1,498)	0	0	(1,498)	0	0	0	(1,498)
Other comprehensive income	(8,015)	0	0	0	0	(8,015)	0	0	(8,015)
Redeemable noncontrolling interest, ending balance at Dec. 31, 2015		$ 24,874
Stockholders' equity, ending balance at Dec. 31, 2015	$ 1,539,896		$ 377	$ 794,676	$ 1,199,977	$ (278,344)	$ (184,796)	$ 8,006	$ 1,539,896
Common stock, shares, ending balance at Dec. 31, 2015	34,944,932		34,944,932