TOPIC 842 ADOPTION IMPACT AND LEASES: Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2019	Apr. 01, 2019	Mar. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right of use asset	$ 17,947		$ 0
Short-term lease liabilities	8,550		$ 0
Long-term lease liabilities	12,600
Operating lease costs	7,200
2020	2,725
2021	10,187
2022	9,147
2023	2,670
2024	725
Thereafter	33
Leased office facilities
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
2020	636
2021	2,560
2022	2,610
2023	2,663
2024	2,699
Thereafter	$ 4,497
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Right of use asset		$ 22,900
Short-term lease liabilities		8,400
Long-term lease liabilities		17,900
Deferred rent		$ (3,400)