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Acquisition, Restructuring and Other Items, net (Tables)
 12 Months Ended
May 31, 2018
Restructuring and Related Activities [Abstract]  
Acquisition, Restructuring and Other Items, net
For the years ended May 31, 2018, 2017 and 2016 acquisition, restructuring and other items, net consisted of:

 
Year ended May 31,
(in thousands)
2018
 
2017
 
2016
Legal
$
10,067

 
$
19,480

 
$
7,487

Intangible and other asset impairment
—

 
5,604

 
352

Restructuring
4,674

 
1,348

 
1,462

Other
691

 
1,078

 
3,290

Total
$
15,432

 
$
27,510

 
$
12,591

The following table presents a rollforward of the restructuring reserve for the years ended May 31, 2018 and 2017:
 
 
 
 
 
 
 
 
Contract
 
 
 
 
 
 
Termination
 
Plant
 
Regulatory
 
Cancellation
 
Other
 
 
 
 
Benefits
 
Consolidation
 
Filings
 
Costs
 
Costs
 
Total
(in thousands)
 
 
 
 
 
 
 
 
 
 
 
 
Balance at May 31, 2016
 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

 
$
—

Charges
 
851

 
494

 
—

 
—

 
3

 
1,348

Non-cash adjustments
 
—

 
(108
)
 
—

 
—

 
—

 
(108
)
Cash payments
 
—

 
(275
)
 
—

 
—

 
(3
)
 
(278
)
Balance at May 31, 2017
 
$
851

 
$
111

 
$
—

 
$
—

 
$
—

 
$
962

Charges
 
1,440

 
2,892

 
68

 
200

 
74

 
4,674

Non-cash adjustments
 
—

 
(276
)
 
—

 
—

 
—

 
(276
)
Cash payments
 
(1,453
)
 
(2,706
)
 
(56
)
 
—

 
(74
)
 
(4,289
)
Balance at May 31, 2018
 
$
838

 
$
21

 
$
12

 
$
200

 
$
—

 
$
1,071