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Employee Benefit Plans | 12 Months Ended
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Jun. 30, 2015
Compensation and Retirement Disclosure [Abstract] |
Employee Benefit Plans | 10. Employee Benefit Plans ​ The Company maintains a noncontributory defined benefit pension plan for all domestic nonunion employees employed on or prior to December 31, 2013, who meet certain requirements of age, length of service and hours worked per year. Plan benefits are based upon years of service and average compensation, as defined. The measurement dates for the pension plan were as of June 30, 2015, 2014 and 2013. Changes in the projected benefit obligation, plan assets and funded status were:
For the Years Ended June 30 | ​ | ​ | 2015 | ​ | ​ | 2014 | ​
Change in projected benefit obligation | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Projected benefit obligation at beginning of year | ​ | ​ | ​ | $ | 57,599 | ​ | ​ | ​ | ​ | $ | 46,569 | ​ | ​
Service cost | ​ | ​ | ​ | ​ | 2,954 | ​ | ​ | ​ | ​ | ​ | 2,457 | ​ | ​
Interest cost | ​ | ​ | ​ | ​ | 2,618 | ​ | ​ | ​ | ​ | ​ | 2,333 | ​ | ​
Benefits paid | ​ | ​ | ​ | ​ | (1,116) | ​ | ​ | ​ | ​ | ​ | (1,092) | ​ | ​
Actuarial (gain) loss | ​ | ​ | ​ | ​ | 550 | ​ | ​ | ​ | ​ | ​ | 7,332 | ​ | ​
Projected benefit obligation at end of year | ​ | ​ | ​ | $ | 62,605 | ​ | ​ | ​ | ​ | $ | 57,599 | ​ | ​
Change in plan assets | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Fair value of plan assets at beginning of year | ​ | ​ | ​ | $ | 39,581 | ​ | ​ | ​ | ​ | $ | 31,501 | ​ | ​
Actual return on plan assets | ​ | ​ | ​ | ​ | (1,248) | ​ | ​ | ​ | ​ | ​ | 4,339 | ​ | ​
Employer contributions | ​ | ​ | ​ | ​ | 6,815 | ​ | ​ | ​ | ​ | ​ | 4,833 | ​ | ​
Benefits paid | ​ | ​ | ​ | ​ | (1,116) | ​ | ​ | ​ | ​ | ​ | (1,092) | ​ | ​
Fair value of plan assets at end of year | ​ | ​ | ​ | $ | 44,032 | ​ | ​ | ​ | ​ | $ | 39,581 | ​ | ​
Funded status at end of year | ​ | ​ | ​ | $ ​ | (18,573) | ​ | ​ | ​ | ​ | $ | (18,018) | ​ | ​
​
The funded status is included in other liabilities in the consolidated balance sheets. At June 30, 2015 and 2014, the accumulated benefit obligation was $56,904 and $51,980, respectively. The Company expects to contribute approximately $12,990 to the pension plan during 2016. We seek to maintain an asset balance that meets the long-term funding requirements identified by actuarial projections while also satisfying ERISA fiduciary responsibilities. Accumulated other comprehensive (income) loss related to the pension plan was:
For the Years Ended June 30 | ​ | ​ | 2015 | ​ | ​ | 2014 | ​
Balance at beginning of period | ​ | ​ | ​ | $ | 16,663 | ​ | ​ | ​ | ​ | $ | 12,240 | ​ | ​
Amortization of net actuarial loss (gain) and prior service costs | ​ | ​ | ​ | ​ | (1,405) | ​ | ​ | ​ | ​ | ​ | (903) | ​ | ​
Current period net actuarial loss (gain) | ​ | ​ | ​ | ​ | 4,626 | ​ | ​ | ​ | ​ | ​ | 5,326 | ​ | ​
Net change | ​ | ​ | ​ | ​ | 3,221 | ​ | ​ | ​ | ​ | ​ | 4,423 | ​ | ​
Balance at end of period | ​ | ​ | ​ | $ | 19,884 | ​ | ​ | ​ | ​ | $ | 16,663 | ​ | ​
​
Amortization of unrecognized net actuarial (gain) loss and prior service costs will be approximately $1,589 during 2016. Net periodic pension expense was:
For the Years Ended June 30 | ​ | ​ | 2015 | ​ | ​ | 2014 | ​ | ​ | 2013 | ​
Service cost−benefits earned during the year | ​ | ​ | ​ | $ | 2,954 | ​ | ​ | ​ | ​ | $ | 2,457 | ​ | ​ | ​ | ​ | $​ | 2,729 | ​ | ​
Interest cost on benefit obligation | ​ | ​ | ​ | ​ | 2,618 | ​ | ​ | ​ | ​ | ​ | 2,333 | ​ | ​ | ​ | ​ | ​ | 2,058 | ​ | ​
Expected return on plan assets | ​ | ​ | ​ | ​ | (2,828) | ​ | ​ | ​ | ​ | ​ | (2,334) | ​ | ​ | ​ | ​ | ​ | (2,136) | ​ | ​
Amortization of net actuarial loss and prior service costs | ​ | ​ | ​ | ​ | 1,405 | ​ | ​ | ​ | ​ | ​ | 904 | ​ | ​ | ​ | ​ | ​ | 1,405 | ​ | ​
Net periodic pension expense | ​ | ​ | ​ | $ | 4,149 | ​ | ​ | ​ | ​ | $ | 3,360 | ​ | ​ | ​ | ​ | $ | 4,056 | ​ | ​
​
Significant actuarial assumptions for the plan were:
For the Years Ended June 30 | ​ | ​ | 2015 | ​ | ​ | 2014 | ​ | ​ | 2013 | ​
Discount rate for service and interest | ​ | ​ | 4.5%​ | ​ | ​ | 5.0%​ | ​ | ​ | 4.4%​ | ​
Expected rate of return on plan assets | ​ | ​ | 6.7%​ | ​ | ​ | 7.0%​ | ​ | ​ | 7.5%​ | ​
Rate of compensation increase | ​ | ​ | 3.0%–3.75%​ | ​ | ​ | 3.0%–4.5%​ | ​ | ​ | 3.0%–4.5%​ | ​
Discount rate for year-end benefit obligation | ​ | ​ | 4.6%​ | ​ | ​ | 4.5%​ | ​ | ​ | 5.0%​ | ​
The plan used the Aon Hewitt AA Bond Universe as a benchmark for its discount rate as of June 30, 2015, 2014 and 2013. The discount rate is determined by matching the pension plan’s timing and amount of expected cash outflows to a bond yield curve constructed from a population of AA-rated corporate bond issues which are generally non-callable and have at least $250 million par value outstanding. From this, the discount rate that results in the same present value is calculated. Estimated future benefit payments, including benefits attributable to future service, are:
For the Years Ended June 30 | ​ | ​ | ​ | ​ | ​ | ​ | ​
2016 | ​ | ​ | ​ | $ | 1,685 | ​ | ​
2017 | ​ | ​ | ​ | ​ | 1,938 | ​ | ​
2018 | ​ | ​ | ​ | ​ | 2,173 | ​ | ​
2019 | ​ | ​ | ​ | ​ | 2,433 | ​ | ​
2020 | ​ | ​ | ​ | ​ | 2,724 | ​ | ​
2021–2024 | ​ | ​ | ​ | ​ | 17,886 | ​ | ​
The plan’s target asset allocations for 2016 and the weighted-average asset allocation of plan assets as of June 30, 2015 and 2014 are:
​ | ​ | ​ | Target Allocation | ​ | ​ | Percentage of Plan Assets | ​
For the years ended June 30 | ​ | ​ | 2016 | ​ | ​ | 2015 | ​ | ​ | 2014 | ​
Debt securities | ​ | ​ | 10%–35%​ | ​ | ​ | ​ | ​ | 19% | ​ | ​ | ​ | ​ | ​ | 20% | ​ | ​
Equity securities | ​ | ​ | 20%–50%​ | ​ | ​ | ​ | ​ | 35% | ​ | ​ | ​ | ​ | ​ | 35% | ​ | ​
Global asset allocation/risk parity(1) | ​ | ​ | 20%–40%​ | ​ | ​ | ​ | ​ | 35% | ​ | ​ | ​ | ​ | ​ | 35% | ​ | ​
Other | ​ | ​ | 0%–25%​ | ​ | ​ | ​ | ​ | 11% | ​ | ​ | ​ | ​ | ​ | 10% | ​ | ​
​ (1) The global asset allocation/risk parity category consists of a variety of asset classes including, but not limited to, global bonds, global equities, real estate and commodities. ​ The expected long-term rate of return for the plan’s total assets is generally based on the plan’s asset mix. In determining the rate to use, we consider the expected long-term real returns on asset categories, expectations for inflation, estimates of the effect of active management and actual historical returns. The investment policy and strategy is to earn a long term investment return sufficient to meet the obligations of the plans, while assuming a moderate amount of risk in order to maximize investment return. In order to achieve this goal, assets are invested in a diversified portfolio consisting of equity securities, debt securities, and other investments in a manner consistent with ERISA’s fiduciary requirements. The fair values of the Company’s plan assets by asset category were:
​ | ​ | ​ | Fair Value Measurements Using | ​
As of June 30, 2015 | ​ | ​ | Level 1 | ​ | ​ | Level 2 | ​ | ​ | Level 3 | ​ | ​ | Total | ​
Cash and cash equivalents | ​ | ​ | ​ | $ | 129 | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | $ | 129 | ​ | ​
Common-collective funds | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Global large cap equities | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | 10,995 | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | 10,995 | ​ | ​
Fixed income securities | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | 8,565 | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | 8,565 | ​ | ​
Global asset allocations/risk parity | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | 6,685 | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | 6,685 | ​ | ​
Mutual funds | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Global equities | ​ | ​ | ​ | ​ | 4,366 | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | 4,366 | ​ | ​
Global asset allocations/risk parity | ​ | ​ | ​ | ​ | 4,303 | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | 4,303 | ​ | ​
Other | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Global asset allocations/risk parity | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | 4,251 | ​ | ​ | ​ | ​ | ​ | 4,251 | ​ | ​
Other | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | 4,738 | ​ | ​ | ​ | ​ | ​ | 4,738 | ​ | ​
​ | ​ | ​ | ​ | $ | 8,798 | ​ | ​ | ​ | ​ | $ | 26,245 | ​ | ​ | ​ | ​ | $ | 8,989 | ​ | ​ | ​ | ​ | $ | 44,032 | ​ | ​
​
​ | ​ | ​ | Fair Value Measurements Using | ​
As of June 30, 2014 | ​ | ​ | Level 1 | ​ | ​ | Level 2 | ​ | ​ | Level 3 | ​ | ​ | Total | ​
Cash and cash equivalents | ​ | ​ | ​ | $ | 138 | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | $ | — | ​ | ​ | ​ | ​ | $ | 138 | ​ | ​
Common-collective funds | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Global large cap equities | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | 9,909 | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | 9,909 | ​ | ​
Fixed income securities | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | 3,935 | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | 3,935 | ​ | ​
Global asset allocations/risk parity | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | 5,803 | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | 5,803 | ​ | ​
Mutual funds | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Global equities | ​ | ​ | ​ | ​ | 3,925 | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | 3,925 | ​ | ​
Fixed income securities | ​ | ​ | ​ | ​ | 1,913 | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | 1,913 | ​ | ​
Global asset allocations/risk parity | ​ | ​ | ​ | ​ | 3,927 | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | 3,927 | ​ | ​
Other | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Fixed income securities | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | 2,007 | ​ | ​ | ​ | ​ | ​ | 2,007 | ​ | ​
Global asset allocations/risk parity | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | 3,954 | ​ | ​ | ​ | ​ | ​ | 3,954 | ​ | ​
Other | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | — | ​ | ​ | ​ | ​ | ​ | 4,070 | ​ | ​ | ​ | ​ | ​ | 4,070 | ​ | ​
​ | ​ | ​ | ​ | $ | 9,903 | ​ | ​ | ​ | ​ | $ | 19,647 | ​ | ​ | ​ | ​ | $ | 10,031 | ​ | ​ | ​ | ​ | $ | 39,581 | ​ | ​
​
The table below provides a summary of the changes in the fair value of Level 3 assets:
Change in Fair Value Level 3 assets | ​ | ​ | 2015 | ​ | ​ | 2014 | ​
Balance at beginning of period | ​ | ​ | ​ | $ | 10,031 | ​ | ​ | ​ | ​ | $ | 280 | ​ | ​
Redemptions | ​ | ​ | ​ | ​ | (2,026) | ​ | ​ | ​ | ​ | ​ | 22 | ​ | ​
Purchases | ​ | ​ | ​ | ​ | 1,280 | ​ | ​ | ​ | ​ | ​ | 9,773 | ​ | ​
Change in fair value | ​ | ​ | ​ | ​ | (296) | ​ | ​ | ​ | ​ | ​ | (44) | ​ | ​
Balance at end of period | ​ | ​ | ​ | $ | 8,989 | ​ | ​ | ​ | ​ | $ | 10,031 | ​ | ​
​
The following outlines the valuation methodologies used to estimate the fair value of our pension plan assets: • Cash and cash equivalents are valued at $1 per unit; ​ • Common-collective funds are determined based on current market values of the underlying assets of the fund; ​ • Mutual funds and foreign currency deposits are valued using quoted market prices in active markets; and ​ • For Level 3 managed assets, business appraisers use a combination of valuations and appraisal methodologies, as well as a number of assumptions to create a price which brokers evaluate. For Level 3 non-managed assets, pricing is provided by various sources, such as issuer or investment manager. ​ Our consolidated balance sheets include other liabilities of  $12,438 and $13,007 as of June 30, 2015 and 2014, respectively, for other retirement benefits, including supplemental executive retirement benefits, international retirement plans and other employee benefit plans. Expense under these plans was $3,286, $3,832 and $2,817 for 2015, 2014 and 2013, respectively. We provide a 401(k) retirement savings plan, under which United States employees may make a pre-tax contribution of up to the lesser of 60% of compensation or the maximum amount permitted under the U.S. Internal Revenue Code. We make a matching contribution equal to 100% of the first 1% of an employee’s contribution and make a matching contribution equal to 50% of the next 5% of an employee’s contribution. Employees hired on or after January 1, 2014, receive a non-elective Company contribution of 3% and are eligible to receive an additional discretionary payment between 1% and 4%, depending on age and years of service, provided that such payments comply with mandatory non-discrimination testing. Participants are fully vested in employer contributions after two years of service. Our contribution expense was $1,583, $1,281 and $1,175 in 2015, 2014 and 2013, respectively.

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