XML 66 R53.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Fair Value Measurements and Derivative Instruments Reporting (Narrative) (Details) $ in Millions | Jun. 30, 2018 CAD ($) | Jun. 30, 2018 USD ($) | Dec. 31, 2017 USD ($)
--- | --- | --- | ---
Fair Value Measurements And Derivative Instruments Reporting [Abstract] |  |  |
Assets measured at fair value on a nonrecurring basis |  | $ 0 |
Fair value of land lease | $ 28.6 | 21,700,000 |
Cash equivalents |  | $ 0 | $ 0

X
- Definition This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value on a nonrecurring basis by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. + References No definition available. + Details
Name: | us-gaap_AssetsFairValueDisclosureNonrecurring
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_CashEquivalentsAtCarryingValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_FairValueDisclosuresAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Net long-term land leases which are capitalized as part of real property. + References No definition available. + Details
Name: | us-gaap_GroundLeasesNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant