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INDEBTEDNESS (Tables) | 3 Months Ended
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Jun. 30, 2016
Summary of Debt Outstanding | The following is a summary of debt outstanding at June 30, 2016 and March 31, 2016:
|  | June 30, |  |  | March 31, |
(In thousands, except weighted average data) |  | 2016 |  |  | 2016 |
Credit facility: |  |  |  |  |  |  |  |
Term loan agreement (A) |  | $ | 300,000 |  |  |  | 300,000 |
Revolving line of credit (B) (C) |  |  | 600,000 |  |  |  | 600,000 |
September 2013 senior unsecured notes: |  |  |  |  |  |  |  |
Aggregate debt outstanding |  | $ | 500,000 |  |  |  | 500,000 |
Weighted average remaining life in years (E) |  |  | 7.2 |  |  |  | 7.4 |
Weighted average coupon rate on notes outstanding |  |  | 4.86 | % |  |  | 4.86 | %
Fair value of debt outstanding (Level 2) |  | $ | 274,187 |  |  |  | 342,746 |
August 2011 senior unsecured notes: |  |  |  |  |  |  |  |
Aggregate debt outstanding |  | $ | 165,000 |  |  |  | 165,000 |
Weighted average remaining life in years (E) |  |  | 4.3 |  |  |  | 4.6 |
Weighted average coupon rate on notes outstanding |  |  | 4.42 | % |  |  | 4.42 | %
Fair value of debt outstanding (Level 2) |  | $ | 108,620 |  |  |  | 127,148 |
September 2010 senior unsecured notes: |  |  |  |  |  |  |  |
Aggregate debt outstanding |  | $ | 382,500 |  |  |  | 382,500 |
Weighted average remaining life in years (E) |  |  | 3.8 |  |  |  | 4.1 |
Weighted average coupon rate on notes outstanding |  |  | 4.35 | % |  |  | 4.35 | %
Fair value of debt outstanding (Level 2) |  | $ | 264,479 |  |  |  | 302,832 |
May 2015 notes (D): |  |  |  |  |  |  |  |
Amount outstanding |  | $ | 28,727 |  |  |  | 30,033 |
Fair value of debt outstanding (Level 2) |  |  | 26,811 |  |  |  | 30,062 |
March 2015 notes (D): |  |  |  |  |  |  |  |
Amount outstanding |  | $ | 27,030 |  |  |  | 27,030 |
Fair value of debt outstanding (Level 2) |  |  | 25,266 |  |  |  | 27,027 |
(A) | The fair value of the term loan agreement was $287.5 million at June 30, 2016 and approximated its carrying value at March 31, 2016.
(B) | Fair values approximate carrying values because the borrowings bear interest at variable rates.
(C) The revolver was fully utilized at June 30, 2016 and March 31, 2016, respectively.
(D) | Notes require semi-annual principal payments.
(E) Weighted average remaining life in years is based on stated maturities; however, all of the company’s indebtedness has been reclassified as current since March 31, 2016.
Debt Costs | The following is a summary of interest and debt costs incurred, net of interest capitalized, for the quarters ended June 30, are as follows:
|  | Quarter Ended |
|  | June 30, |
(In thousands) |  | 2016 |  |  | 2015 |
Interest and debt costs incurred, net of interest capitalized |  | $ | 16,954 |  |  |  | 13,182 |
Interest costs capitalized |  |  | 1,393 |  |  |  | 2,944 |
Total interest and debt costs |  | $ | 18,347 |  |  |  | 16,126 |
Norwegian Kroner (NOK) denominated borrowing |
Summary of Debt Outstanding | The following is a summary of the Norwegian Kroner (NOK) denominated borrowings outstanding at June 30, 2016 and March 31, 2016, and their U.S. dollar equivalents:
|  | June 30, |  |  | March 31, |
(In thousands) |  | 2016 |  |  | 2016 |
3.81% January 2014 notes (A): |  |  |  |  |  |  |  |
NOK denominated |  |  | 250,000 |  |  |  | 250,000 |
U.S. dollar equivalent |  | $ | 29,879 |  |  |  | 30,207 |
Fair value in U.S. dollar equivalent (Level 2) |  |  | 29,846 |  |  |  | 30,199 |
5.38% May 2012 notes (A): |  |  |  |  |  |  |  |
NOK denominated |  |  | 136,320 |  |  |  | 144,840 |
U.S. dollar equivalent |  | $ | 16,293 |  |  |  | 17,500 |
Fair value in U.S. dollar equivalent (Level 2) |  |  | 16,276 |  |  |  | 17,479 |
(A) | Notes require semi-annual principal payments.

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