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Defined Benefit Pension Plan
 9 Months Ended
Mar. 31, 2013
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract]  
DEFINED BENEFIT PENSION PLAN
DEFINED BENEFIT PENSION PLAN
The components of net pension plan credits for the Company’s defined benefit pension plan, a frozen plan for the benefit of certain current and previous employees in the Company's Michigan market, for the three and nine months ended March 31, 2012 and 2013 are as follows (in millions).
 
Three months ended March 31,
 
Nine months ended March 31,
 
2012
 
2013
 
2012
 
2013
Interest cost on projected benefit obligation
$
13.0

 
$
11.8

 
$
39.0

 
$
35.2

Expected return on plan assets
(14.3
)
 
(15.7
)
 
(42.9
)
 
(46.8
)
Total net pension plan credits
$
(1.3
)
 
$
(3.9
)
 
$
(3.9
)
 
$
(11.6
)

The Company recognizes changes in the funded status of the pension plan as a direct increase or decrease to stockholders’ equity through accumulated other comprehensive loss. At June 30, 2012, the Company recognized a change in the funded status of the pension plan as a decrease in equity through accumulated other comprehensive loss of $80.6 million ($49.2 million, net of taxes) based primarily on adjustments related to an increase in its unfunded pension liability due to a decrease in the discount rate used to measure the projected benefit obligation partially offset by an increase in the fair value of plan assets.
The Company made cash contributions of $19.2 million and $32.3 million to the pension plan trust during the nine months ended March 31, 2012 and 2013, respectively.