Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Accumulated Other Comprehensive Income (Details)

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Fair Value Measurements - Accumulated Other Comprehensive Income (Details) - USD ($)
$ in Thousands
 3 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Unrealized Loss in Accumulated Other Comprehensive Loss, before Tax [Roll Forward]    
Unrealized loss at beginning of the period, before tax $ (53) $ (1,269)
Add: gain (loss) from change in fair value of cash flow hedge, before tax (46) (369)
Less: loss reclassified into earnings from effective hedge, before tax (32) (157)
Less: ineffective portion of hedge transferred into earnings, before tax (11) (11)
Unrealized loss at end of the period, before tax (56) (1,470)
Unrealized Loss in Accumulated Other Comprehensive Loss, Tax [Roll Forward]    
Unrealized loss at beginning of the period, tax (19) (444)
Add: gain (loss) from change in fair value of cash flow hedge, tax (16) (129)
Less: loss reclassified into earnings from effective hedge, tax (11) (55)
Less: ineffective portion of hedge transferred into earnings, tax (4) (4)
Unrealized loss at end of the period, tax (20) (514)
Unrealized Loss In Accumulated Other Comprehensive Loss, Net of Tax [Roll Forward]    
Unrealized net gain (loss), beginning of period (34) (825)
Add: gain (loss) from change in fair value of cash flow hedge, net of tax (30) (240)
Less: loss reclassified into earnings from effective hedge, net of tax (21) (102)
Less: ineffective portion of hedge transferred into earnings, net of tax (7) (7)
Unrealized net gain (loss), end of the period $ (36) $ (956)