XML 106 R93.htm IDEA: XBRL DOCUMENT

Accumulated Other Comprehensive (Loss) Income - Schedule of Accumulated Other Comprehensive Income (Loss) (Parenthetical) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accumulated Other Comprehensive Income Loss [Line Items]
Stockholders equity	$ 732.4	$ 733.9	$ 740.4	$ 746.3
Estimated net mark-to-market loss before tax within next twelve months - cash flow hedges	$ 4.7
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent
Accumulated Other Comprehensive Income Loss [Line Items]
Stockholders equity		$ 0.3	$ 0.3	0.9
Accounting Standards Update 2016-01 \| AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent
Accumulated Other Comprehensive Income Loss [Line Items]
Stockholders equity				$ 0.4

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

+ References + Details