Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Mar. 31, 2017
Deferred tax assets (liabilities), noncurrent:
Amortization and impairment of intangible assets	$ 18,261	$ 28,304
Depreciation of property and equipment	(9,638)	(19,511)
Stock-based compensation	4,027	6,258
Deferred rent	5,452	6,809
Acquisition costs	481	751
Uniform capitalization adjustment to inventory	3,212	4,971
Bad debt allowance and other reserves	12,939	15,946
State taxes	798	(145)
Prepaid expenses	(2,686)	(4,144)
Accrued bonuses	7,573	1,456
Foreign currency exchange rate hedges	(80)	(534)
Other	(2,821)	1,376
Net operating loss carry-forwards	863	3,171
Deferred tax assets, net	$ 38,381	$ 44,708