Derivative Financial Instruments - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2016 USD ($)
Derivative [Line Items]
Unrealized losses related to interest rate swaps in accumulated other comprehensive loss	$ 700,000
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Derivative [Line Items]
Effective portion of gain (loss) on derivative	100,000,000
Cross Currency Interest Rate Swap Effective Period of Swap December Twenty Three Two Thousand Sixteen To December Thirty One Two Thousand Nineteen [Member]
Derivative [Line Items]
Notional Amount	100,000,000
Cross Currency Interest Rate Swap Effective Period of Swap December Twenty Three Two Thousand Sixteen To December Thirty One Two Thousand Eighteen and December Twenty Three Two Thousand Sixteen To June Thirty Two Thousand Seventeen [Member]
Derivative [Line Items]
Notional Amount	$ 70,000,000