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Interest Rate Caps | 6 Months Ended
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Jun. 30, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Interest Rate Caps | Note 4. Interest Rate Caps The Company has purchased interest rate cap contracts with an aggregate notional principal amount of $400.0 million. Each contract contains a strike rate against the one-month LIBOR (2.09% and 1.56% as of June 30, 2018 and December 31, 2017, respectively). The interest rate caps have maturities of March 2019 ($50.0 million with 2.50% strike rate), April 2020 ($100.0 million with 3.25% strike rate), June 2020 ($50.0 million with 2.50% strike rate), and April 2021 ($200.0 million with 3.50% strike rate). When the one-month LIBOR exceeds the strike rate, the counterparty reimburses the Company for the excess over the strike rate. No payment is required by the Company or the counterparty when the one-month LIBOR is below the strike rate. The following is a summary of changes in the rate caps:
|  | Three Months Ended June 30, |  |  | Six Months Ended June 30, |
In thousands |  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
Balance at beginning of period |  | $ | 219 |  |  | $ | 27 |  |  | $ | 98 |  |  | $ | 62 |
Purchases |  |  | 481 |  |  |  | 100 |  |  |  | 481 |  |  |  | 100 |
Fair value adjustment included in interest expense |  |  | 18 |  |  |  | (14 | ) |  |  | 139 |  |  |  | (49 | )
Balance at end of period, included in other assets |  | $ | 718 |  |  | $ | 113 |  |  | $ | 718 |  |  | $ | 113 |

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- Definition The entire disclosure for derivative instruments and hedging activities including, but not limited to, risk management strategies, non-hedging derivative instruments, assets, liabilities, revenue and expenses, and methodologies and assumptions used in determining the amounts. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -URI http://asc.fasb.org/topic&trid=2229140 + Details
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