The cash outflow for purchases of and capital improvements on property, plant and equipment (capital expenditures), software, and other intangible assets.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Investing Activities
-URI http://asc.fasb.org/extlink&oid=6516133

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585

Name:	us-gaap_PaymentsToAcquireProductiveAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Subsequent Events (Details) CAD in Thousands, $ in Millions			3 Months Ended		9 Months Ended
Subsequent Events (Details) CAD in Thousands, $ in Millions	Oct. 06, 2016 USD ($)	Oct. 06, 2016 CAD	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)
Subsequent Event [Line Items]
Total capital expenditures			$ 10.1	$ 12.9	$ 31.0	$ 39.7
Subsequent Event [Member]
Subsequent Event [Line Items]
Total capital expenditures	$ 10.8	CAD 14,250